We fell in love with the blood splattered mug in 2008 after a particularly boring office meeting. The only bummer was that the manufacturer, Thabto, never actually put the blood splattered mug into production. Until now.
You can get the knuckle duster in a white mug with gold knuckles or a black mug with silver knuckles, and now in white with blood splatters (limited edition). I think I will just get the white/gold version and create some real blood.