While the basic concept of LEGO bricks ... Assistant. The train is programmed to run a few laps at the top of the hour and play choo-choo sounds from a mini MP3 player hidden in the coal car.

LEGO trains are fun to play with, but as with any model train, you so seldom have enough ... On the sillier side of things, it’s actually possible to use mini-figures as track, too.