Alex Onsager created Pokemon Fusion—a website which lets you splice together the sprites of two different Pokémon, allowing you to create a fresh, possibly horrifying combination—a few years ago. The website isn't new. This past weekend, however, Tumblr artists took it upon themselves to create artistic renditions of their favorite fusions. The results are fantastic.
Here's a small selection of the art, although you can find a ton of Pokémon fusions under the "Pokemon Fusion" or "Pokemon Fusions" tag on Tumblr. The one above, if you couldn't tell, is Psyduck + Charizard by crybringer. Original sprite fusion here.