I kit bashed an Onell Design figure called Pheyden into an alien xenomorph. The Glyomorph!
It uses the Glyos peg system to have interchangeable hands, feet, limbs, heads, etc. with many designers.
Here is the Pheyden figure:
Inspired by: Crafsman Steadycraftin and AC Toy Design and Onell Design.
I also made a Cataloging Librarian action figure and made a silicone mold of it and blasted out resin copies in various colors using Smooth Cast 45d and 65d resin, ignite pigments and a vacuum degassing for the silicone and pressure pot casting for the resin in the mold: