Propagation suggestions

Hey yall!! Finished off this syrup bottle and was using for props but isn't not a super convenient shape. I want to put something in to fill it with roots and eventually break it out. Any suggestions? I've got loads of pothos i can prop but not much else that would fill it the same way

Hey yall!! Finished off this syrup bottle and was using for props but isn't not a super convenient shape. I want to put something in to fill it with roots and eventually break it out. Any suggestions? I've got loads of pothos i can prop but not much else that would fill it the same way