Found myself a new challenge after getting luffa to work:

LAUNCH DATE: TUESDAY AUGUST 5th, 2014
Xryptbit is a new crytocurrency that uses 5 rounds of hashing functions (Luffa, Cubehash, Shavite, Simd and Echo) proving to be more secure and energy efficient than X11/X13/X15 consuming 15-20% less power.