I made this Slot Machine Cake for my friend’s 30th birthday party. We gave her a surprise Vegas-themed party. I used a 13×9 for the main body, and a 9″ round for the top & tray. I did all of the letters and numbers using a run-out technique. About a week before the party, I printed the letters and numbers, put wax paper over them, and traced and filled with royal icing, then topped with edible glitter.
They needed a week to dry, and I think they could have dried longer. They were VERY fragile, and I had to work carefully. She loved it, and still says this was the best thing about her party!