We started with the Playmobil 1.2.3 when DS was around 1 IIRC, and introduced some of the "regular" Playmobil when he was around 2. I was careful to choose sets that were mostly large pieces (like boats) and I hid many of the small parts. He got a lot of the regular Playmobil for this past b-day because as he got closer to 3 I realized that he's OK to be around small parts now. His favorites so far are boats (for the tub), and anything involving wheels. He has the dollhouse too which is nice for toting along to granny's. He does a lot of mixing and matching of vehicles from different brands/sets and spends a lot of time building "garages" for the I have the car wash stashed away for Xmas.