Desperate to spend your Club Nintendo coins but just don't know what to spend them on? Let Nintendo help you out, with a series of Mario "Surprise Me" boxes for 300 coins.

The box contents are secret, but Nintendo claim you'll get at least two surprises with a combined worth of over 500 coins.

While the website shows the mystery boxes in classic ? Mark blocks, they'll turn up at your door in standard postal packaging, which is a little disappointing. Oh, and items may not be returned, so make sure you'll be happy accepting something unknown before you shell out.

Don't forget that next week sees Club Nintendo updated with new games to download, in case you feel like saving your coins.