I was sent a boggle flash to review and when it arrived we played it and all became addicted. Literally. You have to make words out of the five letters that appear on the cubes and do it against the clock. The letters change every time you reset it and play again. The boggle works out how many words you managed to make and how many you could have possibly thought of. It's really clever as you can't just play once and it appeals to all ages. It says 8± on the box but my six year old daughter loves it. You can play together or alone. We took it out to a pub lunch the next day and soon my 9 year old son had a small crowd of children looking over his shoulder all waiting for a go and helping him out.
Its a genius present: It retails at £24.99 but you can find it on amazon, which I have linked above for £10 less.