I can't think what to get for mine.
Was going to get him a bike but he's still too short to reach the pedals on those we've tried so think I'll wait until his birthday in 6 months time for that.
Have bought a few stocking fillers (Playmobil figures, cars) and some books but nothing 'big'.
Ideally something that will occupy him inside during the winter months. He's not a huge fan of arty stuff.