Let's see.... I own a lot of cards (but I was always terrible at the deck building and stuff so they were more for collecting), Butterfree keychain, lots of little plastic toys from Burger King and various toy stores which are all housed in a Pokemon tin, Togepi little gold plate in the Pokeball from Burger King.
Lil Plushes! Umbreon, Vaporeon, Glaceon, Leafeon, Spheal, Pikachu, and Togekiss. I've also been eyeing a Kyogre and either a Squirtle or Blastoise.
My most recent addition is a shirt from Hot Topic that says 'Let me show you my Pokemon' with Pikachu, Sentret, Togepi, and the Johto starters.
ETA: I forgot I recently got a Raikou cell phone charm that I intend to put on my XLDS but right now is just hanging out on my dresser. I also have a Deerling Autumn form plush on the way to me.