Hello, I'm planning to perform a mentalism trick for an upcoming talent show. I'll be doing the trick where an audience member picks a random dollar bill and then I use cards to predict the serial number on the bill. For the finale, I really wanna try doing something with my Instagram like what Dan White did on Jimmy Fallon. My idea is to post several pictures on my Instagram once a day of me holding a number about a week before the show and then during my performance, I ask everyone to go on their phones and find my Instagram to see that the pictures correspond to the serial number. Or I could put all the numbers on a piece of paper and take just one picture for Instagram. Is this a good idea? Please feel free to suggest anything else.