I've finally gotten around to my original intention of publishing the plans (layered DXF files) for all the laser-cut acrylic parts of all the models featured at mechanicalgifs.com.
You can find them at my Thingiverse collection. I have no idea if anyone will actually try to make them from the plans. I'm pretty sure that, unless you already have all the different parts and types of acrylic on hand, it would be cheaper to buy my kit of the same thing. But on the other hand, it might be more fun to make your own parts? If you're the sort of person who would make this sort of thing from Thingiverse plans, I'd be interested in opinions.