Pumpkins!

Candyland, Pool party

Was never good at thinking up these kinda things but if your just looking for more ideas: Floral conundrums, Seasonal (Beach days, Autumn/Halloween is always fun, etc.), tussles with old gods (cause there's never enough tentacles and doms/preds that lurk only in shadows), Quick Sketch comic days, Street-side, Mass-marketing, Quiet mornings. Just a few to hopefully get the yordle brain storming. Bonus points however if you can match your stream music to the theme! Also makes it totally worth trying to look through your music collection and match themes to stuff you wanna play in stream!

Night At The Museum, Balloon Party, Gallows, etc

Smol characters
Ball & Chain matchups
Character sheets
Crossovers
Rule 63

Suddenly kobolds!
The upside-down.

This guy gets it

Maybe something seasonal! Fall-related stuff, pumpkin-spice flavored slices of leaf-filled life. Might be a bit too early for Halloween stuff, but that can be another week's theme, as well as Thanksgiving and Christmas (e.g. Santa Mettle prodding elf yordle to make more toys).

I agree, fall stuff'd pair up greatly with the ''cute'' theme you guys talked of

(I love lag caused double posts)

Medical theme?

haloween esque costume party, fetishy or otherwise.

Sleeping bags.

Mind control / brainwashing

Incidentally, always brainwash in warm water to avoid shrinkage.

Memes

I second this :D

TloZ?
Is that an okay suggestion? heck, i dont know xD