if you look at my system page you'll find a pic of amp stands I made from similar bamboo butcher blocks. I bought the blocks from TJ Max for $20 each and are about 16"x19"x2". They are glued/screwed to an MDF plinth to which the supporting legs are bolted. I bought the "legs" off ebay and while I'm certain they were never intended as legs for anything, I don't know what they were for originally, though my guess is they were rollers for some heavy industrial conveyor system.
Frankly I can't tell you if they reduce vibration because I didn't believe it was an issue in the first place. The Bamboo was as hard and heavy as a similar Rock Maple butcher block I was considering at the time though. My amps sit on a concrete slab floor, and previous stands were a slab of particle board with home made legs. The new ones are more attractive for sure and I know they didn't make anything worse.
Frankly I can't tell you if they reduce vibration because I didn't believe it was an issue in the first place. The Bamboo was as hard and heavy as a similar Rock Maple butcher block I was considering at the time though. My amps sit on a concrete slab floor, and previous stands were a slab of particle board with home made legs. The new ones are more attractive for sure and I know they didn't make anything worse.