In 1974 Ernö Rubik spent only 6 weeks on developing the mechanism of the Rubik's Cube, but it took six years for it's worldwide distribution. The puzzle was licensed to be sold by Ideal Toys in 1980.
To celebrate the 30th Anniversary of the world's best-selling puzzle a limited edition Rubik's Wood Cube was released. You can find it here:
While I was waiting for mine to arrive, I started to make one myself by using the standard plastic core and wood for the visible parts.
Have fun building it