I think all the idea's are great, my only question is, with all the printing on the shirt, how washable will they be. My thinking that a shirt with the picture printed so large that after several washing's, will the picture fade and smude and look bad, look kinda old.

Seem's to me that the more you put on the shirt, the higher the price. I understand that a shirt like that won't be worn everyday so there's no need to launderer as frequently as other garments you wear. You need to charge accordingly so you realize a profit. How many of the online member's are actually going to buy one?

Pierre, maybe you should take a poll before you invest a lot of money in the project and end up with boxe's of unsold shirts, see how many you will actually sell.  Also, you will have to make available different sizes. S,M,L,XL. It may sound like i'm being negative about this and i'm not, but it's something you need to consider. How many online member's do you have now and what percentage will purchase one ?

Those are my thought's, for what they're worth.   

That very well may solve it, but when I put T-shirts in the washer, they go in outside out and sometimes come out, inside out.