Stop in for a cup of coffee

They make drums in all those materials but up until now they've only been for your bench grinder, and it's hard to put a unibody car on the bench grinder. They make all those materials in discs for your Makita, whatever, and wheels for your drill. Carlisle was loaded with 'em.

WALTER SURFACE TECHNOLOGIES Blendex 4.5 in. x 2 in. x 5/8 in.-11 in. GR Medium Surface Conditioning Drums-07M423 - The Home Depot

WALTER SURFACE TECHNOLOGIES 2-in-1 4.5 in. x 2 in. x 5/8 in.-11 in. GR60 Turbo Drum-07K421 - The Home Depot

We still have a Sears.
Or your belt sander. 3M™ Scotch-Brite™ Surface Conditioning Belt 3-1/2" x 15-1/2" MED Grit Aluminum Oxide