The three my daughter likes the most are: + Trains. Especially bridges and self-moving trains. + Cups. Water, sand, playdough, etc. + A robot that takes a se

The three my daughter likes the most are: + Trains. Especially bridges and self-moving trains. + Cups. Water, sand, playdough, etc. + A robot that takes a series of instructions, and then you hit go. This is the most advanced, but she's worked out how to make it spin on the spot, and that is apparently hilarious.