Fels Naptha Bar Holder

Holds a bar of Fels naptha laundry soap.  Holes in the bottom for soap to dry.  Print one of each: screw, soapslider, and soapholder.  Use a ¼-20 bolt (what I had on hand) through the “screw” part (basically a thumbscrew), apply heat to set it in, I pushed in with a soldering iron after pre heating the bolt with a torch.  A common plumbing oring I found in my garage fits on the inside face of the thumscrew, but probably isn't necessary.

Dip 1cm of the bar in water for a short time until it's soft enough to push the “fingers" on top of the sliding part into the end of the soap.

Update: slider2 designed with a larger hex opening for the ¼-20 bolt that should fit without heating, and designed to grip soap from the sides.  Has not been tested yet.