I am just getting started in 3D modeling and design. This is an early attempt just using simple basic geometric shapes to make school hall passes. 3 variations for Office, Bathroom, and Nurse. Easy to color the lettering for printing if you'd like. If you don't have an AMS or want to do a filament swap, consider coloring easily with Sharpie markers. I've been using them in a school daily.
They serve me well, so enjoy if they're of any use to you!