Adding grime to glass? Hey anyone, this is my first post here and i am very pumped to get started on my very first prop/replica project. All i want to do is make a nuka-cola quantum replica from the fallout series. I've already started by stripping off the original coke label, and giving the bottle some "wear" with 60 grit sandpaper. The trouble i've run in to, is that after seeing this album, i want to replicate the sort of dirt/"grime" on the bottle. I have no clue how to do this. I don't think it could be as simple as rubbing it in the dirt. Any help on this, and any general tips that could help me make my first replica look as fantastic as this one, would be greatly appreciated. Here is the album i was talking about. Quantum Nuka Cola by MicahTheBrave - Imgur Thanks a lot guys!