LOL, if I still had a piece of blue plexi in my scrap bin, I'd make you one for a 6 pack of IPA, but I seem to have tossed my acrylic scrap pieces at some point.

Anyhow, I can tell you how to do it: acquire plastic from acrylic supplier (or repurpose something), cut with hole saw without center bit - slowly, superglue to dowel and chuck into drill press, file and shape as necessary, sand smooth working from ~ 320 up to about 1500 grit wet or dry, wet. Polish with polishing compound.