Mauricio sent me this link to a cute little video... from his email:
"My daughter (who is two and a half years old) loves to play with Legos (both Duplo and NXT) and she was next to me the 3 days we were building this.
Of course the whole thing can be 100% automated, I just want it for my daughter to play with it, so I used the PSP-Nx sensor from mindsensors so she could move the lift up and down with a PS2 control."
Thanks for sending, Mauricio... I'm sure your daughter loved it.