Galaxy S5 Shower Mount

Shower mount for Samsung Galaxy S5 (which in itself is waterproof).
Allows you to listen to music, watching videos and even making phone calls when in the shower. Volume buttons are easily accessible.

Sound from the phone's loudspeaker travels through a bent funnel in the mount, directing it towards your face. You can also flip the phone with the screen away from you to get the sound directed directly from the speaker.
Update: Added a version without the speaker funnel, which is easier to print. It still have a backwards-facing hole for the speaker, but sound will bounce off the wall instead of through the funnel.

Attaches to a 22mm shower rod. For smaller rods, use a strip of rubber between the mount and the rod.

Uses 2 x M6x30mm (25mm for simple version) socket bolts and locking nuts. Longer bolts are also ok, just make sure they aren't long enough to scratch the wall behind.
Stainless or otherwise water resistant bolts & nuts are recommended.