Out of curiosity, how did you do that with the sign mate? its quite impressive.
It's just a kind of...select-image-portion
....feature.... and it's resident within some rather vintage
photo-editing software I've been using for about 12 years now. The reverse image transparency gives it credibility but that's just the program being clever NOT ME...I couldn't even begin to guess what the sign should ideally look like once it's been 'curled' at the corner....let alone render it.