All handcut from vintage style papers, then scrunched up, roughly flattened, sanded with an emery board and lastly scuffing the edges.
It's black matt and when you scratch the surface a rainbow effect appears from underneath.
I recently purchased a pack from Poundland and decided to have a play using my bigshot machine and cuttlebug embossing folder.
Firstly I placed the paper (black side up) in the embossing folder (logo side up),
when embossed lightly sand the black and the effect takes place.
This example was quickly done to show you the result.
Go on, have a go and have some fun. Let me know how you get on.