sources for WVO

Hello all,

I've built my own appleseed reactor, wash tank, and dry tank, and 
processed about 15 gallons of WVO into biodiesel. Worked great!

I was hoping to take 20 gallons of homemade biodiesel to burningman this 
year but I've run into a problem.

I can't find any resturants willing to give me their WVO! They've already 
'got a guy' who does that. I imagine the competition for WVO will go up as 
more adopt biodiesel and home brewing.

Any tips for breaking into the WVO racket?

I can supply containers, weekly pickup, etc.

Thanks
-Zetan