Summary

Base for the mini turntable by @wherzog including a PWM and a batteryholder for 2xAAA

Base is approx. 7x7cm, turntable 5cm dia.

see original item für gear and lid.

Use a Speed controller like this:
https://www.amazon.de/gp/product/B07ZPRM23X/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

and a Gear motor like this:
https://www.amazon.de/dp/B081JM8CYJ/ref=cm_sw_em_r_mt_dp_7JJCAT42TZZ7WEZG7N7Z

flex battery holder by @enif:
https://www.thingiverse.com/thing:456900

Fusion360 and step-File are included.