Replacement Handle for Cellular Window Shades

## Description
The acrylic handles on our cellular window shades began snapping soon after we got them. The OEM replacements cost like $5+ plus shipping, and I had little faith they'd be worth it given the poor strength of the ones that came with our shades.

I collected some measurements from an original handle, and designed a close approximation of my own using SolidPython. It could've been done purely with OpenScad, but I preferred the syntax of python when working with a large number of primitives in complex configurations, such as the wavy grip on this handle. I'm sure there are better, more sophisticated ways to generate the complex topology of the grip, but this got the job done and I kind of like how it looks and feels.

None of my replacements have broken.

## Compatibility
The jaw was designed to fit window shades with rails that are 20 mm tall, with a 1.5x1.5 mm ridge that the clip grabs onto.