- Air ducts 
- Aluminium 
- Ant colonies 
- Broken glass 
- Bubble wrap 
- Cellophane 
- Cement, concrete 
- Chernozem soil 
- Condensation 
- Cotton candy 
- Electrical outlets 
- Electroconductive gel 
- Electrode stickers 
- Honey 
- Insects carrying & drinking water 
- Oil refineries 
- Oil spills 
- Petroleum jelly 
- Pipes 
- Pouring water 
- Scaffolding 
- Silk 
- Sparkly gray slime 
- Stalagmites, stalactites 
- Tunnels, caves, holes 
- Water reservoirs 
- Volcanic lightning 
- Wool insulation 
         apr 23 2024 ∞
 jul 22 2024 +