Well, I cannot confirm Valenzuela, but right now on ebay there are
20 Thom McCann discs with at least 3 colors, maybe 4
Pink, green, yellow (maybe red, or it might be pink, I did not take time to check each listing well)
There are 2 different Cecil Coopers, one green and one pink (or red), so it seems possible that Valenzuela could have several colors, but I really do not know for sure
There are also many graded by PSA so perhaps the Pop report could give you some information.
Here is the ebay link
http://www.ebay.com/sch/i.html?_nkw=...sc&_osacat=212