Here is a really simple solution to the "walking mixer" problem.
You can buy a jar of "Museum Putty"  you know, the stuff you stick on the 
bottom of vases or figurines etc. that you do not want to fall off a shelf 
or whatever.
Here in earthquake country it is easy to find, but  it is available all 
over the country.  Check in a hobby store, art supply place, etc. a dollop 
of the putty  on the bottom of each foot of the machine willanchor it in 
place until you want to move it.  You can re-use it many times, even if a 
little flour gets on it, just knead it a bit and it will become tacky again.
--
Andie Paysinger & the PENDRAGON Basenjis,Teafer,Cheesy,Singer & Player
asenji@earthlink.net    So. Calif. USA   "In the face of adversity, be
patient, in the face of a basenji, be prudent, be canny, be on your
guard!"
http://home.earthlink.net/~asenji/