But seriously - I find those cheap vinyl padded piano stools are useful for all sorts of things. As a safe workbench for re-stringing guitars, or for getting cabs of the ground, or just for sitting on.
I have a proper guitar stand that holds a cab at an angle - although with my sloping roof that's not so necessary.
My drumkit is just on a rug at the moment - but I really want to build a drum riser. I'm thinking of a thick plywood sheet, but I haven't decided how to support it.
A few tyres would work ok - as longs as they were all the same size. I've seen industrial support things that are basically rubber inflated things with flanges top and bottom. Expensive though.
In the past i've tended to use lots of closed cell rubber sheet (you can buy cheap camping bedroll foam pads and cut them up). You can glue this onto 2x4 or whatever to get a solid non-squeaky support.
So maybe i'll use concrete blocks and closed cell rubber ..
My carbon footprint is bigger than yours.