As seen in his recent restoration of his Nagra IV-S plastic cover, Adam demonstrates the usefulness of a motorized angle polisher like the one made by Proxxon in his buffing of a spacesuit helmet! The variable speed of this kind of handheld polisher works great with Novus multi-stage plastic polish, and even Adam is surprised by how much better the helmet dome looks without too much physical effort! 

Proxxon Angle Polisher: https://amzn.to/3Cr2UqT
Novus Plastic Polish Kit: https://amzn.to/3C4Zjxx
Brillianize Plastic Cleaner: https://amzn.to/3LY6s7m
Adam's Nagra IV-S restoration: https://www.youtube.com/watch?v=-Jk1MrTpJOk