Pew Decorations

You could use something like a 3M adhesive hook.

Hi Wilma! Can you share a picture of your pew decorations so we can try to picture it? That might help with suggestions!

You can always try something like an over the door hanger if the pews are too thick to attach your decorations to, or you could try purchasing those Command hooks which you can attach to the pew and then should be able to remove after without damaging them