Cotton Bureau are running a “beer, pizza, and gaming” promotion and apparently this Dice by PCalc shirt is discounted by 25% if you use the offer code “GameNight25”:

James Thomson

Dice by PCalc - DM Tee by TLA Systems

This dice is the favorite color of DMs everywhere. Or, at least, my DM.

Cotton Bureau (cottonbureau.com)

I am genuinely not 100% sure why this is happening, but the offer ends at Thursday, November 21 at 11:59 PM ET, so get yourself a cheap shirt now, I guess?