Sometimes the best window scraper for your car is that old gift card you have in your wallet, right? Why not make a nice handle for it?!

This model includes a couple of small bumps and matching recesses inside the slot to help keep the card in place.

The handle is not particularly strong, given the orientation of the layers, but I printed it this way because I didn't want to try to clean support material out of the slot. Maybe you can slice it better!