Have children and don't know what to buy them that would be age appropriate... then step this way, tell us how old your children are, and we shall give you suggestions 
I'll begin... I'll have a 14mo DS2. I'm looking for a fun disposable gift. For his 1st birthday in October I'm buying him a box of helium balloons, so what can I get him for Xmas?!? At the moment he loves Mickey Mouse and Waybaloo.