Found 19 Hole CC0 textures in library

Asphalt Damage Set 001
Grate 002
Manhole Cover 001
Manhole Cover 002
Manhole Cover 003
Manhole Cover 004
Manhole Cover 005
Manhole Cover 006
Manhole Cover 007
Manhole Cover 008
Metal Grate Rusty
Sheet Metal 001
Sheet Metal 002
Sheet Metal 003
Sheet Metal 004
Wood 031
Wood 073
Wood 074
Wood 075