The collective awesomeness of Tado & Jon Burgerman have opened up the Immature Miniatures shop, where you can buy original artwork! Each piece is a collaboration between the two, and they are really reasonably priced for original work. There's even a few cute plushies for sale!
Tado also has some really great stuff in their own online shop, including some prints I'd like to own!
Tado has a show this summer at Magic Pony at the end of August, and it looks like it's going to be awesome!