ROTFL ... I loved this one:
http://www.zazzle.com/the_prices_may_vary_tshirt-235489392993311664And I agree, the full color logo would be best. However, the cost differential between the white logo versus full color might be prohibitive. I work in the printer industry (some of the printers I worked on printed directly to T-shirts), and the cost difference was dramatic.
Wonder what Outerra swag sales would be like after a year?
I visited a buddy/mentor of mine up in Seattle a couple of years ago. He was then working as a 3d artist on the MMO, "The Agency," by Sony. I received TONS of cool swag from the devs, one of which was a "secret agent pen" that would project "The Agency logo" at about a 3 foot distance. I can imagine Outerra having something just as cool as that