I need to get a few bits and bobs for my best friend's son. His main present from us will be cash towards driving lessons, but his mum is struggling a bit this year and they have no other family, so I want to make sure he has a few surprises to open on Christmas morning. He's blooming awkward though - he has autism (very high functioning) and he's not really got many interests beyond the games he plays online. Not interested in books, music, fashion, toiletries etc., and he can't eat chocolate because of food intolerances. Any ideas for small quirky things that he might enjoy?