Here are the pictures of my electropolishing experiment.
The item is a simple used food grade stainless steel elbow
(1"). Hopefully, the titles are self explainatory.
I originally purchased enough chemicals to make about 1.8 
gallons of the formula.

I simply heated the entire vessel on a simple hotplate to
140F. Then, I submerged the item and turn on the power.
Although I did not have any agitation, the mitxture 
quickly turned white as the bubbles generated during the 
process began foaming. 

Please note that this process is not exactly smell free. 
The sharp odor of acid is very noticeable. Also note that 
I am outdoors during this process. Hot acid in the house 
or shop is never a good idea.

 EPolish_10 Minutes.jpg
 EPolish_5_Minutes.jpg
 EPolish_InProcess.jpg
 EPolish_Unsuspecting Victim.jpg

Here is an excerpt from posting on the Yahoo Electroplating group.

I used the proportional ranges laid out in the initial patent 
(2,461,035) and mixed it myself. 
Specifically:
65% Phosporic Acid (85% solution)
25% Sulphuric Acid (18N)
10% Isopropyl Alcohol (90%).

I mixed up 2.3L. For those who want to play with this, I mixed mine
in this order, Alcohol, Phosphoric, Sulphuric (working from 
weakest to strongest). I used an 18/8 stainless kitchen tool holder 
as a tank.