This is a razor holder that I designed for my wife so that her razor would have a home in the shower, and a spot to dry off after its use.

Important: I printed it in the orientation shown in the second picture. No supports were required.

I used two 3M poster/hook adhesive strips with the pull tab to attach this to the shower wall, and it has been staying put with no adverse effects from the direct or indirect moisture in the bathroom environment.