I'm working on a project that needs a lot of hand sanding. I usually use a random orbital sander, so 90% of my sandpaper is 5 inch discs. I have a few sanding mice and blocks I can use, but I didn't have anything with dust collection, and I'm too cheap to buy something, so I made this. It's basically a 5 inch circle of plywood with dust holes drilled to match the standard layout. It has a thin box on the back with a vacuum port glued into it. The sanding face has a firm foam interface with predrilled dust holes and velcro. Its all sealed up, so the suction is great! It has 3 coats of poly on it, because I intend to keep this thing. First time using it today and it does exactly what I want. Very pleased with my cheap ass. #diy source