Groovy Cubes

Designed Rick Eason 2004, purchased from Mr. Puzzle Australia 2006.
(Burdekin Plum, 2.4 inches)

The solution is unique and made more difficult due to 3 "false solutions" (arrangements that could exist in a solved state but there is no order of assembly to achieve any of them). Below are photos of two steps in the solution and the sheet that came with the puzzle:

Further reading:
Winter Patent, from: - patent no. 6,241,248