I wanted some TPU feet for GrafXP's Modular Rack System (I call it MRS for short). The only ones I could find were part of RockChewer's Single Stack Gridfinity MRS remix, which I felt were a bit too big on the foot side and too loose of a fit on the stem/insert side. So I exported one of the feet from RockChewer's 3mf, then imported that into a new model in Bambu Studio and used the cut & scale options to redo it at a size I personally prefer. Here is the result.

(The attached STL file contains a single foot, and the print profile contains a set of 4.)