Hello, do you need more info or are you typing the answer?
How long does it need to stay up an what makes suction cups undesirable?
It needs to go on a bath pillow so it needs to be able to be submerged in water for taking a bath.
Suction cups cause problems with not sticking properly or sticking but the suction is not strong so it slips. Also if the suction is too strong it can be difficult to take off without the possibility of ripping the bath pillow itself.
Is there an alternative that can be used to keep it sticking on the bath panel surface and be able to be removed and restuck everytime it is used?
I will do some research and get back to you