'What's a photo-booth doing in a magic store?' you wonder, pausing for a moment. From the outside at least, it looks like any other photo-booth, the likes of which you used to see in malls, arcades, and other public places. Large, bluish box, with a section with a small bench and a curtain which can be closed for a modicum of privacy. Giving into curiosity, you step inside, sit down and pull the curtain. An old, CRT-style screen in front of you lights up and displays: "Please insert coin." Oddly, it doesn't say what denomination. Grabbing a coin from your pocket, you stick it into the slot and the screen goes black.
'Great,' you think. 'It's broken and I just lost a coin!'
As soon as you finish your thought, the screen lights back up, showing a real time image of you. A different display lights up next to the screen reading: "Please select any desired change to the person."
Under that heading is a listing of options.