Tim I have an Apple Retro sweatshirt if you want it?
Black with rainbow APPLE letters.
I've never worn it been sorting stuff out at this end and found it at the back of the wardrobe.
Skinny lad like you OK. Chubbster like me, no go.
I really could keep going, these are just some of the major players!
I think the real challenge with shirts is getting dealing with the balance of exchange rate, shipping and knowing your size. Most of the americans print on American Apparel (strange that?), and they run a bit slim compared to what we are used to in the UK.
If you'd have asked this yesterday you would have been in business! there has been black friday sales on most of these sites today (us timezones permiting) and loads of them have had 25% off floating around.
To be honest, alot of them do have codes floating around anyway, so worth googling or asking me if I know of one!