fwiw if you don’t have a 3D printer, you can try asking your local library. “maker’s spaces” are becoming more common and most of them have 3D printers that you can use at little to no charge. (Ours also has a lasercutter, a cricut, a sewing machine, and embroidery machine, and a handful of other bits and bobs)
[Image ID: two photos of an orange, 3D printed light switch made to look like miniature old style switches. Despite not being much larger than a regular light switch, it has a larger handle that can be pulled down to flip the switch. /end]
