Arend Smith -- AKA Ravendark Creations -- is an Etsy seller who sculpts beautiful monsters in a variety of materials, ranging from the Snailien (3.75" x 4.25" x 7", resin, $150) to the Miskatonic Bookworm (6.5" x 6" x 11"; resin, chicken quills, epoxy, many finishes available, $275) which is also available as a Chrysalis (9.75" x 4.5" x 4.75", custom finishes available, $150); to massive custom piece like this massive apoxie/bronze/iron octopus (6" - 10'!) -- or a wonderfully/horribly squishy Silicone Cthulhu Octopus Lovecraft Pet (5" x 2", $50, many finishes available).
Miskatonic Bookworm Chrysalis:
Silicone Cthulhu Octopus Lovecraft Pet:
(via Creepbay)