Currently Being ModeratedSep 10, 2012 8:56 AM (in response to randallfrompa)
Shop on eBay, Craig's list or any other site where you can get a used copy. That is the only way - OS 9 has been officially unsupported by Apple for years now, so all you can do is shop around for a used copy somewhere.
Note too that your options for machines that can run OS 9 in classic mode or natively is limited:
Currently Being ModeratedSep 11, 2012 10:34 AM (in response to randallfrompa)
Another link from LowEndMac showing the best deals they have found. There is a broad range of pricing and some look reasonable. Also listed is an upgrade guide for classic systems.