Sticker Mule is a company that offers custom printing services for stickers, decals, labels, magnets, buttons, and packaging. They provide easy online ordering, free online proofs, fast turnaround, and free worldwide shipping. The company was founded in 2010 and is headquartered in Boulder, Colorado. Sticker Mule aims to be the easiest way to order custom printing and provides 24/7 customer support. They have over 495K followers on Instagram and describe themselves as "custom printing that kicks ass".