What can you get for 3 quid?

3 pounds sterling is all I have left of the £50 birthday I was given. Most of it has gone on useful things ("Gathering for worship", the BU worship patterns and prayers book and a book on preaching), as well as one less useful thing (SimCity on Nintendo DS).

So what can I do with the rest (was going to say "spend the rest on" there, but it may not necessarily involve spending it). Any ideas (aside from "give it to me" or similar) then please let me know...