Anniversary present?!?

Me and my boyfriend have nearly been together for a year but I don't know what to get him for our one year. He's going to be on holiday but I'll need to get him something for when he gets home. I've already got him a ticket to a gig but it's only because I wanted to got and my mum is going too as she likes the singer. I've spent £12 so far... I just don't want to get him something he won't like. Any ideas for what I should get him?