I have two daughters. One is four and the other is twenty months. They both enjoy going anywhere with me to fly my R/C airplanes, and they seem to enjoy any time they can get on the simulator with my transmitter. While they just crash over and over and giggle, I'm sure it's helping build important neurological pathways :)
While at Target the other day I saw one of the Planes characters, El Chu, with an infrared remote. It was a bit of an impulse buy, but it has proved to be quite fun for me, and I think the girls are enjoying it from time to time as well.