Fast Lane Track Connector

This is a track connector for the Toys'r'Us store-brand of car tracks, marketed as Fast Lane in Canada (and maybe elsewhere). The track packs don't come with enough connectors to set them up in a different configuration from the one on the box, so I made a few of these for my son. It should let you connect an unlimited number of tracks end-to-end.

You can fit 5x of these on the print bed of a small printer like the Monoprice Select Mini. They take about half an hour each to print at standard