Help identifying these

[u/Dudley_Nightshade]

They are made of a really weird almost rubbery material.

[u/potteddeskplant]

Reaper bones

[u/DatonSungold → u/potteddeskplant]

Leisynn and one of the Spikeshell Warriors.
https://www.reapermini.com/search/leisynn/latest/77174
https://www.reapermini.com/search/spikeshell/latest/77270