probably jammie dodgers, a dalek plushie, a red sonic screwdriver, a rose plushie... and also if someone sent him a book on 'TARDIS' FOR DUMMIES' that wouldn't hurt much either
When I first saw this part, I had to watch it at least five more times until my laughing fit was over. I then started thinking about it and realized that, besides the fact that the Doctor is - and always will be - a kid at heart, he also mentioned in the Christmas Carol episode that he has indeed met, and knows, Father Christmas. So, of course you'll always going to make a Christmas list when you know the guy actually exists.
And probably Jelly Babies
Well then obviously he'll always make a list, no matter what his age