An interactive robot T-Rex construction set?! Toys don’t get much cooler than this! The Meccano Meccasaur is a challenging 715-piece build—with a heap of robo-rewards. The finished beast is a 3-foot long roaring, chomping, rampaging dinobot. It loves to stomp around and you can program it to walk where you want, guard your stuff or attack intruders. It can also answer yes/no questions and it purrs happily when you pet it. With tons of features and commands, the Meccasaur is a ferociously fun mecca-pet.