I hadn't though of eBay! Someone on this QB would probably be willing to sell the Go! type cutouts too.
Here are some links to what I found on eBay:
http://www.ebay.com/itm/SUNBONNET-SU...item19c910aea9
http://www.ebay.com/itm/SUNBONNET-SU...item19c910b029
http://www.ebay.com/itm/SUNBONNET-SU...item5ae28765e4
and I'm sure there are others.