31 robots in 31 days: Robot # 8 Christmas in LEGO City by Jakeb1543 was the only project this builder shared on the MINDSTORMS Gallery. This project makes LEGO system bricks come to life with MINDSTORMS (something I love to see).
"The house conceals the NXT brick, motors, wires etc. In front of the house is a large Xmas tree which turns slowly. Under it are some presents which move when the tree turns. On the balcony are a choir of minifigs and a band. The NXT is programmed to play Silent Night. On the other side is Mary, Baby Jesus and the 3 wise men. The manger rocks and an angel slowly flies up and down above it. Right in the front is a giant Santa who waves merrily at everyone who passes."