ok... for starters I used "Ultra Sunlight with Stain Lifters Morning Fresh"
then i got some of this...

and put it in a margarine container with water...im sorry I didnt measure how much of each I used but dont be shy witheither the spray nine or sinlight, then i fill up the rest of it with water and let em soak for a few hours? im not sure. I put them in at about 6 after i got back from work, and started cleaning them at 12 or so, im sure i could have cleaned them sooner, but I was pretty busy. So I would suggest in the morning before you go to work or before you go to sleep on a weekend and then you can clean them in the morning. And i think i was a little bit overzealous with my time estimate, but i think i did 100 in 35- 40 minutes. And its o.k. i had about 90 soaking a little margarine tub and they all cleaned very easily.
Cleaning: I think my method also had something to do with it... How i did it i didnt rub in a circular motion or anything. I held the chip and cleaned just one half of each side, rotated it a quarter and did that again, until the entire surface weas clean. after it soaks there is really not alot of scrubbing that needs to be done in most cases a quick wipe will take all the grime off, except for those ones with the gunky deposit they need a little bit more elbow grease, surprising ly the stamps came off very easily,
I hope the missouri gaming control doesnt see this thread and start destroying chips like ten said.
Make sure to get a Mr Clean Magic Eraser, and it has to be wet to work effectively!