I've got a suggestion for the next T-shirt design though I think Blizz would get a heart attack at Blizzcon Ofcourse the bottom part would reflect your country of residence. BC stands for Botting Club Obviously Just some harmless photo shopping, no pun intended And yes, it's a wallpaper, Foto wallpaper (custom ordered on 6 mtrs broad wall).
Unfortunately, they're not for sale. The cost per production VS profit isn't really worth it for them to be sold. The only way to obtain these is if Bossland decides to do another giveaway.
It's really easy to get a shirt, take the logo to any local Tshirt shop. Have them size the logo and either screen print, press, paint, draw(depends on the shop) the logo on the shirt. When I had a few done here locally, the shop that did it even retagged it for me so it doesn't show a random brand name, it shows the buddy based branding. 3 shirts $30 bucks total, 2 orange and 1 grey.