Getting started woodworking- what can I build with these motors?

[C-Bag]

One of the best projects I ever did for myself was make a cyclone for my shop vac. I don't do much woodwork but I do use the grinder to take off rust and powdercoat. Both things that are horrible for the lungs. And especially powdercoat will clog a filter in a shop vac in a heartbeat. And those filters are expensive! But after making the cyclone off ideas I found on the net out of 8" duct parts from Home Depot, 2" pvc and a 5 gal bucket I get years out of my filters and it's way easier on the vac. And waaaaay better than one of those bag type dust collectors you see in woodworking catalogs. Fairly cheap to make too.