Quoted from brucipher:Couldn't you just get them directly from PPS?
http://www.planetarypinball.com/mm5/merchant.mvc?Store_Code=PP&Screen=PROD&Category_Code=GS-4032&Product_Code=PPS-31-2824
You could but direct from PPS... $37 U.S for 2. And $48 U.S shipping to Canada.
= $109 CDN.