business card shooter

I made this, but didn't have time to print it. it should fit a standard business card, and has to be printed In parts. I went to a surplus store and picked up a random switch, motor, and a battery. you can change the hole sizes to fit your switch. I'm currently in the process of printing this, and would love feedback. this is still slightly a work in progress, so let me know if something doesn't work as intended.