After ordering some decently cheap black vinyl film from Aliexpress and waiting a week or two, it finally arrived.
This is the first time I ever lay my hands on vinyl, I've never done any work with it nor do I have any major plans to do so in the future. The work I've done is fairly shabby, but as the case will mostly be dark, it should do OK. Luckily the worst parts will be mostly covered up.
I might tear it all off in the future depending on whether or not it'll flake off when heat is introduced. Hopefully it'll be fine.Edited by Paprika - 6/23/16 at 1:33pm