A common blender clutch (coupling) part (B&D). Uploaded in protest to things that cost enough that they should last a lot longer than they do!Designed in Sketchup (not Blender. heh heh heh). Printed on an UP! 3D printer. (with solid fill and fine finish) Already scaled 1:1 in mm. Print, install and enjoy that cool blended drink!Update: Install on the jar side (as opposed to the motor side). Printing it in ABS with a solid fill, the part seems heavier, stronger, and much less brittle than the original. It held up to several jars of blended ice last night.