ive actually done that before. you gotta get lucky and see them sitting infront of the store your goin into though. give em a 20 and have them buy you a 6 pack or whatever and let them keep the change
before they changed the id's to the new style it was a piece a cake (here in TN anyways). i just scanned it onto the PC, photo-shopped the dates and then printed.. make sure you use the appropriate type of paper so it doesn't look anymore faker than it has to. then paste to an expired card, or one that you no longer use. bam. i never did get busted with that thing for the 2 yrs i used it. i was nervous as shit using it, but it worked. with each state you have diff id's so it's hard to answer this question unless ur from the same state.
nah man im from california. i have two id's, the horizontal one and i just got the new vertical one. if i can download photoshop for free i might go buy the right kinda paper and see what i can do.