Thank you everyone for the great responses thus far!
To answer a few of the questions/concerns:
1: I love all the ideas for shirts so far. I can easily make whatever design you want, it's just that each new design will cost a minimum of $15 per color to set up (one time fee), so a design with more colors will be more expensive.
2: YES 4X T-Shirts are available!!!! clear up to 6X in case you're curious...
3: I have previously ordered tshirts, zip up hoodies, pull over hoodies, and ladies fashion hoodies (for those of you who have a 'figure') and I can honestly say, they are FANTASTIC quality. I recently did a HALO Reach design on medium weight black zip up hoodies and are SUPER comfy. Inside is a very soft and warm fleece. These costed about $25 each. You can see that design here -->
www.reubart.com in the bottom right corner in the "NEWS" block.
4: Silk made shirts actually ARE available... in fact there are TONS of awesome shirts/jackets/whatevers available. I may post a list of my favorites if votes continue being positive. My favorite is the polo with a more-breathable stripe under arm and down the side (better ventilation while programming at work! :yh
5: Glow In The Dark ink - yes and no... the ink is VERY expensive. Setup alone for that is $80 and the inking is about $15-20 per shirt... but if that's worth it to you... we can do it. An alternative is 'holographic vinyl print' which is VERRRRRY cool. Not GITD, but still very cool!
6: Once the setup is done for a design, I can get it printed on any variety of products, ie I don't have to order 20 tshirts, it can be 2 hoodies, 3 zip ups, 2 jersey polos, 2 athletic running shirts, etc...
Not including shipping, here are some price generals:
Tshirts $10+
Polos $20+
Hoodies/Sweatshirts $20+
Keep the votes coming! 
