For those of you who have access to a machine shop, check out this post from the Djoko Lab with technical drawings on how to machine an inoculating turntable. The parts go for about $20, and the results look solid:
An inoculating turntable costs big £££ so hubby machined one for me for a grand total of £12 in materials. Plus I got to pick the colour! #LabLife #NewPI #MustSpendStartupWisely pic.twitter.com/sqDxjxj1p0
— Karrera Djoko (@thecopperdoctor) May 6, 2018