Well, some are large, some are exceedingly small, but hey. Mostly images for a post-apocalyptic/disaster type of maps.
Animal bones. It's there, just a white, transparent image on a white background: 
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Cow skull: 
Crashed Apache helicopter debris field:
Crashed Apache helicopter fuselage:
Decayed body: 
Desktop computer: 
Office chair:
Potted plant:
Rusty semi:
Science terminal:
Treetop:
Wine bottle:
Work bench:
Wrecked bicycle:
Wrecked motorcycle:
Zombie beheaded:
Zombie car wreck:
Zombie headshot:
Zomble leg:
