Vivitar 283 flash modifiers

I picked up several of the venerable Vivitar 283 flashes the last time I went out west and wanted to try using them as a cheap studio flash. Here are a few flash modifiers that clip onto the front that I came up with. I hope a few of you find these useful.

I designed these using Illustrator for the shape, Photoshop to extrude and OpenSCAD for the rest. One of these days I'll learn a real modeling software.