Widely considered to be the world's best-selling toy, an incredible 350 million Rubik's Cubes have been sold worldwide since the crazy, super-fun (and yes, ever-so-slightly frustrating!) cube was launched in 1974. It was especially popular in the '80s - no wonder, with those bright colours and wicked geo design! You may not be able to solve this perplexing puzzle - but one problem we've got sorted is where to find amazing, totally wacky Rubik's Cube Fancy Dress. Right here at TruffleShuffle, of course!