Geleton

Based on the Gelatinous Cube skin by Carter994
DnD race - Geleton
From The Griffon's Saddlebag:
Geletons are the living, symbiotic fusion of two semiconscious life forms: oozes and reanimated skeletons. When a skeleton suspended in an ooze is subjected to necromancy that would normally transform it into a mindless thrall, it's possible for the ooze to magically connect to the reanimated body, and its departed life, instead, This event is called Sythesis, and it's through this process that the fragments of life held by ooze and skeleton can come together to form a complete whole. Occasionally called Symblexes for their parallels to other intelligent oozes, geletons are given a rare second chance at life--one that they are as moldable to as their gelatinous forms themselves.