I've finally come across a material that works as a wrapping to make a slippery surface sticky. It's used for this by other people, and after a bit of testing, it seems to work. (I haven't yet used it enough to know whether it slowly slips like silicone rubber does.)

The material I have in hand is Shushi double sided fabric backed adhesive tape (probably not widely available). It feels like tarred fabric and is slightly stretchy. It is not very sticky but has a bit of grip when wrapped tightly. I gather double sided hockey tape is the same material and would also work, so long as the adhesive can grip low surface energy plastics.

I've finally come across a material that works as a wrapping to make a slippery surface sticky. It's used for this by other people, and after a bit of testing, it seems to work. (I haven't yet used it enough to know whether it slowly slips like silicone rubber does.)

The material I have in hand is Shushi double sided fabric backed adhesive tape (probably not widely available, I think it's the company's tape 99 in China). It feels like tarred fabric and is slightly stretchy. It is not very sticky but has a bit of grip when wrapped tightly. I gather double sided hockey tape is the same material and would also work, so long as the adhesive can grip low surface energy plastics.