Andrew Heath is a graphic designer and illustrator based out of Lexington, Kentucky who sells a bunch of fantastic pop culture-inspired art prints (sizes vary) that would be perfect for your nerd cave. He's got posters based on Super Mario Bros., Pokémon, The Office, The Simpsons, and more.

None of the prints exceeds $20, and some are even as low as $5, so you won't be breaking the bank here. They don't include frames though, so you'll want to make sure you have one of your own.

Check out the full collection here.