Crazy Piano 
Another silly mod from Chong McBong

Replaces the "baggage" (small airport truck)
has towing ability (airport baggage trailers)
custom cols
carcols compatible
carmods compatible (nitro/hydraulics)
comes in black or white (with option to change piano and seat colours at transfender)

see readme file for install instructions

let me know if you have any ideas for musical trailers it could tow 

here is a video of it in action: