I absolutely love Oshawott in the Black and White anime. He's just so incredibly cute...especially his little Japanese voice. I wasn't terribly fond of him when the design was first released, but he's one of those Pokemon that just slowly grows and grows on you until you just can't help but love him.
These are my favorite plush that have been released for him so far: Dreamworld Oshawott, Fukuoka Oshawott, Pokecen Oshawott, 2010 Christmas Oshawott, and the MPC Oshawott. I really only try to go for the plush where he's smiling; I'm not crazy about the frowning Oshawott design. I also have a drawstring terrycloth bag, retsuden stamp, glittery rubber stamp and inkwell, Kid, pen, and 2010 Oshawott pink wreath ornament.
Below are some photos I've taken of various items. :)