Two more designs are here to play up the retro angle with the old-skool stock arts. These are T-shirts, however you just kind of have to assume what the rest of the shirt looks like due to these design only photos.

The first shirt features a rare sight: angry Sonic. Steamin' Sonic head proclaims "Slow Sucks I have a need for speed" while steam comes out of his ears in classic cartoony style. The crackle/age effect really isn't to much good use here though.
The second shirt says "Major Player Pro Am Sonic Tour 1991" with the nicely done classic standing stock art. It too looks a bit worn, but in this case it may be more beleivable as it is trying to look like it was from a long-ago event. (fictitious)