Exploding heads.
Trigger is HeadBoom.
Nearly all the images were tagged with one of
Headless
Faceless (has something above the neck, but no real face)
Lower_Face (everything from the nose up is gone)
Full_Face (just the top/back of the head blown off)
The explosion can be described with
Smoke (might be able to add a colour)
Fire
Explosion
Glitter (only a couple of samples, not sure if it works)
Blood
Viscera (this gets quite gory)
If you add facial features, particularly with Viscera, you may find them contained in the spray of blood and messrather than attached to the face/head. Specifically, there were images tagged with
eyeball
teeth
tongue