Out of curiosity I looked and couldn't find any. Do they have to be for candy? If not, Patchwork Cutters may have something. How are you going to use them? Maybe you could make your own template and cut them from a sheet of melted chocolate or chocolate clay.
Could you use the fondant letters and pour the candymelts inside them-hopefully they wouldn't be difficult to come out....just a thought. Or make them of fondant with the letters? I googled and couldn't find any lower case letters-found lots of great ones (I use them on my cakes too) but not for the lower case....
I am not sure if they have them, (sorry did not have time to look thru) but I have ordered from them a lot and the service is great!!!
http://www.countrykitchensa.com/catalog/catcandymolds.aspx?T=2&shopId=18
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