Heat resistant feet? Replacement PS-2 feet?

I just purchased a PS-2 and very impressed so far…

I want to physically stack a small combo amp on top of it. Currently the combo has metal feet. I want to replace them with rubber feet that won’t scratch the Power Station.

This should be an easy job, but the PS-2 gets moderately hot on top and I got worrying about whether the typical feet I can buy are maybe going to melt over the course of a gig and make a big mess of everything.

OTOH the PS-2 itself has rubber feet that are clearly up to the job.

Is it possible to purchase spare/replacement PS-2 feet from Fryette? (I didn’t not find any on the website)

Or failing that does anyone have a source for suitable feet, or a spec for materials to look for or avoid?

There is no requirement on Power Station feet to be high temperature so I would not go that route.

For high temperature you really need to know the type of rubber otherwise you are just guessing. I found this on the web, for a one off I’d make an enquiry, surely they have “samples” you could request. https://product.etol-rubber.com/all/high-temperature-resistant-silicone-rubber-feet