That sounds doable if you keep the design tight. Use a single power source, maybe a rechargeable battery that lasts through a full set of jokes, and a sealed, refillable cartridge for the confetti—no extra plastic per pop. Make the dispenser motorized but low‑power; a simple stepper motor can handle the popping mechanism and also dispense the joke cards. Keep the casing modular so you can swap out parts without throwing away the whole unit. Then you’ve got a high‑efficiency prank kit that doesn’t add to the landfill.