So, I’ve always wanted one of these:
I didn’t want to spend $17 just to make sorting cards easier… But I have a laser!
It’s 1/8" clear acrylic. I glued the base pieces together, but the sloped trays are loose so I can change them around. I still need to make 2 more sets to fill out the “alphabet”. Came together in about an hour to 1.5 hours total from inception to glue setting, designed completely from scratch in AutoCAD, then put into Inkscape for conversion to SVG and addition of symbols and text.