Pieter Claesz van Haarlem - Self-Portrait With Vanitas Symbols, by Bailly.
Pieter Claesz van Haarlem - Vanitas Still Life with the Spinario (an Italian 'thorn puller' 1628).
Pieter Claesz van Haarlem - Vanitas Still-Life (1630).
Some skulls on display, Nyamata Memorial Site, Rwanda.They gave Cambodia a run for their money.
Skulls from the stupa memorial at the killing fields of Choeung Ek, near Phnom Penh, Cambodia.(for those of you who didn't understand Bat Guano's reference)