I have continued my experiments with latex moulds. I'm still having trouble with very small/thin parts, so when I decided to try Barbie-sized soles, I chose wedges. I had a cheap set of shoes for Steffi and picked a pair of those. In the photo, you can see an original shoe, one with straps removed, a resin casting, and the latex mould. Pouring resin into a mould this small is challenging, as is getting all air bubbles out, but it can be done.
Another part of my experiments is making foot lasts for all 1/6 scale dolls. In the photo below, the foot lasts from left to right belong to these dolls: Hollywood Royalty Lana Turner, Silkstone Barbie, Tiny Kitty Collier, Monster High Howleen, Bratzillaz, and Pinkie Cooper.