Pavilo
Solid color shirts, or very lightly patterned. Only things which you would think of as being cotton t-shirts, short or long sleeve may work but likely short sleeve is best. Nothing fancier. Even your current shirt is too distinct.
Yeah I was going to use it on this one but it looked like it was trying too hard to be edgey (even that I'm already trying way too hard as it is and am not edgey), but it just looks really... awkward. I'll go mess around with some junk shirts.