My oldest DS looooved wheels. Anything with wheels! He carted toy cars around the way other childen cart a security blanket or teddy. smile We were not really car people at all, so it was very funny. As he got older, he was into clocks (he got a cuckoo clock for his fourth birthday), trains, cogs, motors, etc. It was wonderful to watch it develop.

DS2 seems to be into animals,especially cats. Anything from common house cats to lions and tigers. He's only 2.5, so I'm curious as to the direction that will go.