A company I used to work for has gone out of business. They are selling what remains of their assets at hugely discounted prices (you get to haggle).
There are a handful of beastly-heavy pan-tilt units available, in various states of repair. Some might need repair. I think some are in good working order.
If I remember correctly this is the right description FLIR D300 PTUs
These aren’t the sort thing that would ever go onto a competition bot, but the could definitely add some go-faster stripes to a Tee-shirt or potato cannon, point a ham radio antenna, or give a Halloween mannequin some extra pizzaz.
If you are interested in working out a deal with the guy selling off the equipment (not me!) send me a PM and I’ll connect you with him.