Turntable isolation...

Electron microscope platform.

Grand Prix Audio Brooklands wall shelf mounted to dedicated studs (i.e. studs which are not otherwise connected to any other part of the wall, only at the floor and ceiling), the studs themselves are further isolated by the addition of Acoustic Sciences Corp stud stabilizers -- these are quite inexpensive and neatly designed devices, if you have a chance to open the wall up and are looking at wall mounting a stand I think you should consider them
http://www.acousticsciences.com/products/stud-stabilizer

bcoz i don't want my parrot landing on it :-)

Vibraplane from Sounds of Silence