I thought I’d got a good deal getting a Simpsons 20Q for 8 quid up town. But Amazon have them even cheaper. I’ve long been a fan of the original 20Q device, which guesses what you are thinking by asking you 20 questions about it. The original has an astonishing ability to guess random things, from lava lamps to artichokes to the air.
The Simpsons one is nowhere near as good, but it is quite fun, and does seem to have been programmed by people who really know a lot about the show.
Worth getting at the new low price, but if you haven’t got a 20Q (and everyone should have one) then get that instead.