Incomplete/under construction, but given how spotty searching each week and seeing whether or not Reddit got it right, I'm going to start compiling a list of correct answers for FF14's "Fashion Report" Gold Saucer mini-game, which has you use cosmetics to earn tokens for more cosmetics. Not a comprehensive guide--if you know, you know, and if not, you don't.
I'll be updating with my findings as I get them....

Note: Dungeon spoilers for various expansions ahead.
Note: I'm only putting what I've confirmed or de-confirmed, which means some of these will have additional answers I simply have not tested but others may have.

Answer keys _{(to be updated over time)}:

Adventurer First Worn
= all default armor (can buy from vendors near main City-State Aetherytes if previously discarded), e.g., Hyuran Tunic, Lalafellin Bootees, Hrothgar Subligar, Viera Chestwrap, et al.

Allagan Attack
NOT Allagan Earrings of [blank], Proto-Ultima Earrings of [blank]

All in the Wrist
= Leather Wristguards (low-level Disciple of the Land armor)

Animal Instincts
= Reindeer Antler Headband (part of Online Store costume)
NOT Bunny Crown, Thug's Mug

Autumn Chill
= Alpine Coat (post-Heavensward quest reward)
NOT Hannish Wool Autumn Sweater, Raincoat

Avant Garde
= Toadskin Leg Guards (mid-level Disciple of War armor)

Behorned
= Succubus Horns (bought from Gold Saucer for 24000 MGP)
NOT Thug's Mug, Reindeer Antler Headband, Bonewicca Shadow's Visor

Best Dress-ed
NOT Best Man's jacket, Ishgardian Gown, Hannish Wool Autumn Shirt

Bloodsands
NOT Boarskin Harness

Bonewicca Bow-Wow
= Bonewicca [blank] (L. 70 loot armor from The Swallow's Compass; may or may not occasionally be bought during limited-time "Moogle Treasure Trove" events, a.k.a., Irregular Tomestones, where in the past it has been possible to obtain a limited selection for a limited time)

Bookworm
NOT Custom-Made Healer's Robe, Brand-new Robe, Velveteen Halfrobe, Velveteen Bliaud, Linen Robe, Dark Divinity Feldr, Scion Adventurer's Jacket, Wake Doctor's White Coat, Hannish Wool Autumn Shirt, ...

Brain over Brawn
= Brass Spectacles, Torturer's/Electrum Monocle, Pince-nez (not "Contemporary Pince-nez")

Caligae Divorcee
= Hard Leather Caligae (low-level Disciple of War armor)

Carnation Celebration
= Rainbow Carnation Earring

On Ceremony
NOT Best Man's Gaiters, Cotton Dress Shoes

To Chains
= Bronze Chain Coif (low-level lancer armor), Templar's Chain Coif (L. 44 loot armor from Dzemael Darkhold)
NOT Aurum Temple Chain

The Coil That Binds
= Allagan Ring of [blank]
NOT High Allagan Ring of [blank], Ultima Band of [blank], Proto Ultima Ring of [blank]

Cooking up a Storm
= [blank] Mitts/Lightmitts
(low-level armor)

Cosmos in Bloom
NOT Coronal Straw Hat

Cute as a Button
= Augmented Shire Preceptor's Ring
(L. 60 armor purchased with Allagan Tomestones of Poetics at Idyllshire, accessible starting in the later third of Heavensward, or Rowena's Representative in Ishgard post-Heavensward)

Devil in Denim
= Spring Bottoms
(after doing a few Fashion Reports, "Spring" items are sold by Kasumi, the girl standing next to Masked Rose, by selecting "Enter Boutique")

Dueling Duelist
= [blank] of the Defiant/Daring Duelist, Red/Lost/Ghost Thief, or Plague Doctor's/Bringer's [blank]
(L. 60 loot armor from St. Mocianne's Arboretum)

Fashion Bandit
NOT Gambler's Boots

Fashionably Late Allagan
= Late Allagan [blank] (L. 1 gear obtained with Wolf Marks from Wolves' Den; normally impossible for free players, but occasionally, during limited-time "Moogle Treasure Trove" events, a.k.a., Irregular Tomestones, it has been possible in the past to obtain a limited selection for a limited time)

Flap in Front
NOT Oasis Sarouel

Floral Delight
= Summer's Flame Pareo
NOT Summer's Flame Top

Flower Power
NOT Stablemaid's Hat

Friend to the End
NOT Yo-kai Watch, Bone Armillae

"Fringe" Benefits
= Dhalmelskin Fringe Boots, and the other Fringe Boots (I forget but I've done them both before)
(Heavensward and Stormblood basic equipment for Disciples of the Land)

Fur and Fluff
= Fighter's Jackboots (Job-specific Warrior armor from L. 45 Job Quest), Reindeer Hooves (past holiday item, bought from Online Store)
NOT Scylla's Boots of Healing, Hakuko Kyahan, Augmented Torrent Boots of Aiming

Hingan Nights
NOT Far Eastern Smock

I Believe in Magic
NOT Hard Leather Boots, Toadskin Boots, Raptorskin Crakows, Scylla's Boots of Casting, Hakuko Kyahan

In the "Fold"
= Brand-New/Acolyte's/Foestriker's Thighboots/Boots (Disciple of Magic reward from Novice's Hall), (Hard) Leather Shoes (low-level Disciple of the Land gear)

Keeping It Casual
= Green Beret
(IL 1 items at various-level Weaver recipes, but one is given for free upon gaining Glamour function)

Keeping It Weird
= Sharlayan Goggles (bought from Gold Saucer for MGP)

Leaping Leopards
= Coeurl Mask (bought from Gold Saucer for 24000 MGP), Militia Subligar (L. 50 Disciple of War armor)

Leather
= Goatskin Wristbands, Patriot's Bracelet

Mini Me
= Brand-new Waistwrap
NOT Brand-new Trousers

Mono a Mono
= Silver Monocle, Torturer's Monocle (L. 24 loot)

More Beast than Man
NOT Fighter's Breeches, Tonberry Culottes, Amon's Breeches

Near Eastern Nights
? Thavnairian [blank] (actually I can't remember if I got this one to work or not)
NOT Oasis Sarouel, Softstepper's [blank] (despite being the same model as Thavnairian)

Patten on the Back
= Maple/Ash Pattens (low-level Disciple of the Hand armor)

A Pirate's Life
= Holy Rainbow Shirt of Fending
NOT Buccaneer's Shirt

Primal Revival
= Augmented Hellfire/Slipstream/Torrent/Hailstorm [blank] of [blank] (L. 60, Primal-themed blue-background equipment purchasable with Allagan Tomestones of Poetics in Idyllshire or Rowena's Representative in Ishgard post-Heavensward; also offered as post-Heavensward Main Scenario quest rewards)

Pumped Up Kecks
= Hempen Kecks (low-level Disciple of War leg armor)

Robed in Resistance
= Filibuster's [blank]
(L. 60 loot armor from Baelsar's Wall or Sohm Al (Hard))
NOT Arhat [blank], Wild Rose Boots

Rouse Trousers
= Hempen Trousers (low-level Disciple of War armor), Padded Velveteen Trousers (ARR Tank armor), Gambler's Trousers (bought from Gold Saucer with MGP)
NOT Filibuster's Trousers of [blank], Night of Devilry Trousers

In Sheep's Clothing
NOT Unorthodox Saint's Gloves

Shivering Timbers
NOT Altered Woolen Shirt

Shod with Sandals
= Leather Sandals (basic armor),
Bridesmaid Sandals ("Novelty Gear" bought in Ul'dah),
Summer Sunset Sandals (and probably other summer event "Sandals")
NOT Mythril-Plated Caligae

Short Shorts
= Toadskin/Raptorshin Brais
NOT Aurum Brais _{for some reason}, Hard Leather Subligar, Casual Halfslops

Simply Gorgeous
= Lazurite Ring of Slaying (L. 74 Shadowbringers basic accessory)

Sleight of Hand
= Gambler's Gloves
(bought from Gold Saucer with MGP)
NOT Woolen Dress Gloves, Archaeoskin Gloves of Casting

Smallfolk
= Oasis Doublet/Tunic (common NPC gear, which are MGP prizes)

Smitten with Mittens
= Harlequin's Mitts, Goatskin Mitts, Hard Leather Lightmitts, ...
NOT Tonberry Hands

Son of a Gun
= Anemos Gambison

Suddenly Sarouels
= Cotton/Velveteen/Buccaneer's Sarouel (ARR Disciple of War leg armor)
NOT Hempen Sarouel, Oasis Sarouel, Softstepper's Sarouel

Superbly Spiked
= Toadskin Armguards (mid-level Disciple of War armor), Noble's Armguards (L. 50 ranger Loot)
NOT Aurum Armguards (L. 47 Disciple of War Loot)

Sweet Sakura
NOT Stablemaid's Hat, Summer's Flame Hat, Little Lady's Crown

Talk About Slacks
= Best Man's Slacks
("Novelty Gear" sold near Ul'dah Aetheryte Plaza)

Tight and Long
= Brand-new Thighboots, Augmented Ironworks Boots of Casting, Hyuran Thighboots
NOT Ishgardian Thighboots, Scion Traveller's Boots, Acolyte's Thighboots _{for some reason}

Tip o' the Arhat
= Arhat [blank] (L. 70 Loot from Ala Mhigo)

Tooth and "Nail"
= Claws of the Beast

Traveling Dawn
NOT Wayfarer's Tabard

True Linen
NOT Linen Shirt

A True "Spectacle"
= Oval/Classic Spectacles, Contemporary Pince-nez, Coeurl Eyeglasses, Oval Reading Glasses
(L. 1 items craftable by Goldsmith in L. 30-45 range, or found on Marketboard),
or Artisan's Spectacles (L. 50 Disciple of the Hand armor obtainable with Grand Company Seals once a certain rank is achieved)
NOT Brass Spectacles, Pince-nez, Sharlayan Goggles

Up a Long Sleeve
NOT Leather Jacket, Ishgardian Gown

Who Needs Sleeves
= Tantalus Vest
(lifetime subscription reward)
NOT low-level Doublets

The Wild Side
= Boarskin Survival Hat (L. 1 item craftable by Leatherworker in L. 30-35 range, or found on Marketboard),
Gaganaskin Jacket of Aiming (L. 60 armor for rangers, base level for Stormblood but purchasable in Ishgard)
NOT Linen Survival Halfslops, Extreme Survival Slops, Linen Survival Shirt, Extreme Survival Shirt, Boarskin Jerkin

Wild Whiskers
NOT Unorthodox Saint's Cap

Winter Wonderland
NOT Unorthodox Saint's [Blank] (a Santa Claus costume), Leather Lightmitts, Tonberry Hands (they look like mittens), Harlequin's Mitts

....