I would think "replay attack" works in a lot of cases now. Find someone over 21, get their barcode on the back of the license, sticker that over yours. For bars that just scan and get yes/no, you're in. No need to modify the face of the license, which nobody but the TSA seems to look at. (I buy sudafed every month... the pharmacy never checks that I look like the ID; just that the barcode scans.)
A place I used to work had 3D badges, so that your face kind of appeared to be sticking out as you inspected the badges. (Lenticular lenses.) I thought this was a neat security feature, so I color printed a copy of my badge and just put it in my badge holder in front of the actual badge to see if anyone would notice mine wasn't 3D. They did not notice, never in 5 years.