Here's the parts (in addition to the cameras). I use Gopros that I have but you could probably use the cheap Chinese cameras on Amazon, though originally I tried those and they had a tendency to crap out in the middle of the game for unknown reasons. The Gopros also have noticeably better quality. As long as you're mounting it on your bench, you don't really have to worry about people walking away with them.

Suction Cup Mount: https://www.amazon.com/gp/product/B0023ZK2TY/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1

Selfie Stick: https://www.amazon.com/gp/product/B00ST1Y2QU/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1

Swivel Mounts: https://www.amazon.com/gp/product/B07M77G7M2/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

Dual Camera/Device Rig: https://www.amazon.com/gp/product/B01ATRQI5Y/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1