It didn't look like there were very many easy to see pictures of the merchandise, so I thought I'd post some pictures.
The final t-shirt design is still in development, but it will be a bright blue shirt with a somewhat abstract 1971 Indycar racing at you at a 45 degree angle, with the car disintegrating into a checkered flag flowing out behind it.
Also, let me know if anyone would be interested in a Competitor + Merch Tier for $8.