Private FB group VOMIT CLOCKS defines them as
“A 1960/70s mid-century craft trend where one incorporated rocks or other items (dead insects, dried plants, glitter, shells, etc.) into a mold (clock, animal, trivet, plate) and then poured a clear or colored resin which hardened into the molded object. […] The vomit clocks’ jumbled contents often look like regurgitated vomit or a gelatin salad full of fruit chunks.“
The history, cleaning, maintenance and repair of Vomit Clocks may be found at The Vomit Clock Museum.
[Images found here and elsewhere on the internests.]
Tacky Raccoons 