Any suggestions or ideas of party favors for a 2yrs birthday celebration?

Stationery and craft material such as small notebooks, colour pencil set, crayon set, or small watercolour set. Throw in a snack and it should be good. Guess it also depends on your party size, budget and stuff. If it's for a small and more intimate group, you can have a small handwritten card to thank them for attending as well. :)