Artist "Randy C" on has created an extensive selection of Pokemon art with an original angle. All the Pokemon are in their cute original form, wearing hoodies or onesies of their final evolved form. So for example, Caterpie's wearing a Butterfree outfit, Pikachu's wearing a Raichu outfit, etc.

The nice part is, unlike a lot of internet art, you can buy all of it. The art is available on a t-shirt, plush pillow, phone cover, stretched canvas, and more. Randy C has over fifty pieces of art on his page, spanning every generation of Pokemon. You can browse through the full selection here.