Instrument Cluster plastic repair issue..

My 66 Barracuda is being redone and I am working on the instrument cluster. Roger Kizer (@RogerK ) mentioned in one of his YT videos about melting the plastic pins when disassembling the plastic cluster for repairs adding a little new plastic when you were reassembling them. I had rust between the plastic lenses and the metal masks on the small gauges and in carefully melting those heads to remove them I know I will need some additional plastic to reattach. What are you all using for your doner plastic?