The following are extracted from original C-Dogs/Cyberdogs heads, by Ronny Wester CC-BY 3.0 (see graphics/originals.txt)
- beret
- cyber_shades
- cyborg
- eye_patch
- flattop
- goggles
- mohawk
- ponytail
- riot_helmet
- shades
- ski_goggles

The following are derived from original C-Dogs/Cyberdogs heads. Please still attribute to Ronny Wester using CC-BY 3.0
- beard
- donut
- dutch
- handlebar
- rattail
- widows

The following are original and licensed as CC0

- combat_helmet
- hazmat
- helmet
- horns
- peak_cap