This is a variation on the Oreo fidget spinners found at the site below. I was not successful using the files in the original so I resized and tweaked the cream part and redesigned the cookie to fit very tightly with no glue required. I do recommend that you spray the bearings with WD40 to get them to spin loosely. When new, they have too much resistance.

Oreo Fidget Spinner (for 608 Bearings) by mrgrotey - Thingiverse

Hardware:

Amazon.com: RuoFeng Stainless Steel Hex Nut Pack of 50 (M6) : Industrial & Scientific

Donepart 608-2RS Bearing, 608 Bearings, C3 High Speed 8mmx22mmx7mm Bearings, Double Sealed Small Bearings for Fidget Spinner, Skateboards, Scooter, 3D Printer, etc (20pack): Amazon.com: Industrial & Scientific