I used 2 45deg pvc fittings and a length of pvc pipe, and epoxyed the whole thing into a corner of the shower. I was too afraid of suction cups coming off. Beatrice, yours is pretty cool, too, and not permanant.
You can make some many parrot things out of pvc. Just takes some glue and imagination. Just ask AmyMyBlueFront's Jim about the one I made for him for the car.