This is a bit further out there, but black fingerless gloves with the marks on them would be -awesomesauce-
You and I would probably be the only people buying the gloves, but I
totally agree
. Also, I love the swirly color effects behind the symbol and card art. That's what makes the shirts cool imo. I would be interested
as long as it printed well. You have to be careful because some printers don't allow you the spectrum range you want, so the art comes out looking slightly pixelated.