Triptych: Zimvaders

"Space Invader Zim" (t-shirt design) by John Jurik¹

"Space Invader Zim" (t-shirt) by 1337Wear²

"In(vader) Zolo" (t-shirt) by Atomic Rocket³

¹ I should mention that I'm not 100% certain that the John Jurik I linked to is the same person responsible for this t-shirt design. I am open to correction.
² I don't know if this shirt glows in the dark or not, but it should, and if it does, I want one.