Just as a note: the weight bags are still "preorder". So, I went ahead and got this:
Stand Weight TSW10 | ACCESSORIES | ACCESSORIES | PRODUCTS | TAMA Drums
It's for drum sets, but works like a charm. Available from Amazon & either B&H or Adorama, forget which, plus probably music stores. About the same price, slightly cheaper. The only ding is that it says TAMA in bold white letters, so, just use it upside down or black the letters out.
Also, where applicable, some gaff tape on the feet works well.