Tony Aguero G. is a Costa Rican artist who toys with retro-futurist images of products like this pixel gun or old-school robots. Best of all, you can get a lot of his work on t-shirts.
I adore this picture of a robot marching along.
And then there are these x-ray goggles. Kind of cheesy, kind of awesome.
Who wouldn't want to broadcast their cyberzoomery with this tee showing Cybernauts who are connected to the internet even in space!