XL for me. I'm not all that fat, I just dislike tight t-shirts. On a side note, does this friend have the ability to silkscreen onto acrylic/Plexiglas? I've been having trouble finding a shop that does that sort of thing.
mug, t-shirt, I want it all! M for me. I think it would be best if you could choose between a dark and a light themed t-shirt with the respetive logo, corresponding to the two main forum themes.
You may want to consider getting some vinyl work done for it. I worked in a place that did it, for work experience. Very sticky. Don't think it will come off.
Few questions: How much are they? I understand silk screened shirts are good so the design wont go shit. what are the quality/brand of the shirts printed to. I want to know in advance so I can get a size or 2 larger for when they shrink.