I seem to remember some time ago American Rodder printed an article on Bolt Circles, if memory serves there was also a diagram of a circle with all the PCD's drawn inside. Anyone know the issue, or where on the net I could find soemthing similar?
Or you could follow this link to Eastwood and buy their bolt circle gauge. http://www.eastwoodco.com/jump.jsp?itemID=12537&itemType=PRODUCT Its on sale for $8.99 and its plastic. I have one, its handy and useful. If you don't have the $9 plus shipping you can follow Mutt's method.
I went one better and called the 800 number shown on your disc and they refered me to their Utah based warehouse where I talked to Cindi and she is sending me out some just like the one in the picture. The number in Utah is: 800- 297-9890 Gumpa
I see the plastic gauges at just about every swap meet I attend (I just picked one up this past Saturday as a matter of fact). $3 seems to be the going price. Look for a big vendor with lots of Chinese tools. They usually have them in SAE and Metric.
Heidt's and Autozone have had free cardboard ones...not sure if they still do...but I snag some at Autozone a year ago. Every car show I have been too I have seen em, usually heidts ones.