Alignment would be impossible, which would constrain the design. You could achieve a decent floral pattern, but you'd need to forego any vines. Celtic knots are

Alignment would be impossible, which would constrain the design. You could achieve a decent floral pattern, but you'd need to forego any vines. Celtic knots are out. Presumably larger prints will arrive, but you still have the trouble of mapping to a non-euclidean surface. Unless of course you're tattooing Euclid.