I just visited the KBDfans site, and while they had some double-shot molded keys, and they had keys in the "Retro" style, they didn't have any that were both. That is what I would like to see available.
However, I see that the Signature Plastics affiliate does have such keys. I've even placed an order, although they were out of stock on the DSS Dolch, they did have the DSA Dolch. They didn't quite have the selection of DSA double-shot sets that I would have liked, but I managed to find something that satisfied me. These keys, designed for MX and MX-compatible switches, will come in handy when my pre-ordered beam-spring keyboard finally arrives so as to make it just about utterly perfect.