Starting from last year around this month after I really started taking a huge interest in cetaceans, I began collecting stuffed dolphins and whales starting with an orca... and boy did my collection really grow from just a one year time frame and now they've all taken over my bed! xD

Update: My stuffed cetacean collection has grown considerably by three in December alone! I also ended up getting a couple sharks for both my birthday and christmas too.
Now to identify each of them from the left all the way to the right:

Pounce Pals pacific white sided dolphin - got him in April, named him Oreo.
Conservation Critters dolphin - Christmas gift of 2015 with the orca keychain, named him Jim.
Wishpets humpback whale - Locally bought alongside with the little orca in December and it was the last one the guy had too. - Her name's Thelma.
Wishpets orca - This little guy I've spotted through the window of a small local store, and then a couple days later I go back to the store to buy this little guy along with two other stuffies! - The little orca's name is Dylan.
Aurora blue dolphin - Got him sometime in June or July, named him Aqua the chubby blubby dolphin.
Wildlife Artists atlantic white sided dolphin - Another Ebay dolphin (Oddly labeled as a "common dolphin" by the seller, but I knew it was an atlantic white sided phin! This particular phin I've passed up from buying before earlier in the year, due to it's price. But sure enough he was still there calling for me in December and the price appeared to have lowered... so I decided to finally get him x3 - I named him after one of my dolphin oc's, Davo
Melissa & Doug dolphin - bought locally in October while I was supposed to be searching for a new desk, named him Echo and is my largest plush.
Fiesta humpback whale - got her in July after whale watching, named her Aria.
Unbranded orca whale key chain - christmas gift from 2015.
Dakin Willy plush from Free Willy 2 - got him some time in August, named after the real orca whale "Keiko".
Douglas Toys "Balenna" orca whale - gifted to me by Han in October 2015, named him Dougie as a play off of his brand name and identified him to be a male calf.