I have a total of just 6 "Mini" size (36 mm - 1 7/16") chips in my collection, shown below. (The orange HCE chip is a standard size chip for comparison.) I know that the H. C. Edwards & Co. sample "Mini" size chips were made in at least 3 different colors, see this post:

http://www.thechipboard.com/cgi-bin/bbs521/webbbs_config.pl/noframes/read/912839

Does anyone know of any other "Mini" size American chips? It's kind of interesting that the only casino issued (as far as I know) "Mini" chips are from Michigan. I wonder if there is any reason for this.