Well personally I reckon that Donald would win out, but Yackfou think differently. Which sums up their tshirts actually, they are very ‘different’. Which personally I love. Also check out Jesus Fights, awesome.
Yackfou is a German site with many, many, awesome designs. The shirts are pricey at €30-35, but sometimes you just have to pay for quality designs.
You could however grab one of their designs, Napoleon’s Ride, for just fifteen bucks at Threadless.
