I collect...
→ Pichu
Probably my most noticeable collection is my Pichu collection. For the most part, if I see something with Pichu on it, I'll get it. I skip over a lot of stuff, and don't reeeally collect the cards all that much, but even so, I just love the little thing. :D I have a ton of plushies, figures, etc. I definitely don't plan on having a complete collection because Pichu is far too widespread to be able to manage that. I'm very happy with my collection so far, and it's always growing. I'm waiting on two new plushies in the mail right now, actually. Omg, one I've been searching for for YEARS so I'm really psyched.
→ Cherrim
Along the lines of the Pichu collection, I collect Cherrim stuff too. :D Not much else to say about this one--there's not nearly as much merchandise and since I'm not too in tune with the Japanese products out there, I don't even know what I'm missing, but the collection is coming along.
→ Movie ticket stubs
Haha, totally unrelated, but that's okay. I save every ticket from seeing movies. I'm only missing one or two since I started collecting, as far as I know. I keep them in my wallet and they go as far back as November 18, 2001. (That's when I saw the first Harry Potter movie. ;D)
Um, aside from that, I don't ha--wait.
→ Plastic Spoons
Back when I was like 12 or 13 or around there, I decided it would be cool to collect plastic spoons. o_O; Yeah, I dunno, and I don't collect them anymore, but I still HAVE all the spoons I managed to acquire back then, haha.
Okay aside from that there's not really anything else. I collect a few other Pokémon things here and there, but for the most part that's it. :D