I too contated Noel about having custom 20" stands build for our speakers. Personally, I really like his designs and find them quite attractive as well. For the money, the Skylan Stands are a very good value.
You will have to do some experimentation with filling. Both in material and amount to use but in th eend, you will greatly enjoy the results.
I will say that I did not like them "empty" in my application.