I can endorse the earlier poster's comments wrt to the Ikea Oddvar Stools as stands.
I swapped from some open frame metal ones (the ones supplied by the Malaysian/Singapore distributor I believe) to the Oddvar's and can report a very definite benefit. And at A$13 each - priced just right.
I use Herbie's Big fat Dot's (3 per speaker) under the 5's to decouple. I have also experimented to great effect with a barely inflated 12 inch child's inner tube under the 5's: although they are hard to balance.