There is a new project called Eternity2 with the aim of solving the Eternity II puzzle. You need to own the actual puzzle to participate. There is a prize of $2,000,000 (two million) USD for whoever finds the solution. If this project finds the solution then the prize money is split 50/50 with the successful participant.

The puzzle itself has an RRP of £35 in the UK or $50 in US.

distributedcomputing.info
Official project site