Step 2This is all you need (but not the coke can).
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I used scrap 1/2" plywood (I originally said it was 3/8", but after careful measuring with a real ruler and everything, I found it was in fact 1/2") and some scrap steel pipe. Any diameter pipe will do. Drill holes in the wood the same diameter as the pipe. Holes should be big enough for pipe to slide in freely, but not too loose, or some stability will lost. The size of the wood and length of the pipe can vary depending on your needs. This size will easily hold 50 watt combo amps.