My DS will be 18 months next week (crikey that came around fast)! So far I have;
Christmassy PJs
A couple of books
A soft toy
Some play food and pans (main present is a play kitchen)
Hat
Muppets Christmas Carol DVD (he doesn't watch much TV but does love the muppets!)
They're lovely and generally practical gifts that will get a lot of use but I'd like to add a few more little bits. As he's a bit small for chocolate coins I'm a bit stumped for ideas!