My amplifier sits on a concrete patio square I bought for $3 at a big chain building supply store.
The concrete block is up on some old Tiptoes I owned (I could have used anything, even some strips of wood to lift the slab off the rug).. And the amp is up on #10 butyl rubber bottle stoppers on top of the slab.
Total cost pretty small.
I am a cheapskate.
Mainly I want the amp off the floor so no bugs climb in..
It is hidden behind a chair anyway, so I have no aesthetic reasons for a stand.