At the request of @JohnD's dad, Joe D aka "Mickey Mantle", I've replicated the scene where elves on a hand car push the Polar Express' observation car back into place..
The main issue was the pickup on the Elf handcar. It wasn't playing nice with the track on Joe's layout, so he requested I run a jumper wire with plug from the pickups on the observation car to the handcar.
A small length of Plastruct tubing was cemented to the underside of the observation platform.
In operation, the jumper is discreetly tucked beneath the railing.
Joe also wanted a push bumper on the handcar. A pocket clip salvaged from a scrapped ballpoint pen was repurposed for this.
The jumper is attached to the power lead of the handcar.
The plug is a cutdown spade socket.
Wiring in place, ready for reassembly.
Final connexions before field testing.
Success!
Mitch