About this 3D model
Quick-to-print key tags with simple graphics for labeling keys by their use: home, car, and work. Tags are 1"x2" and a little under an eighth of an inch thick. The hole is about an eighth of an inch, and should fit a key ring easily. Even with 50% infill, these take about 15 minutes on my Ender 3, and use just over 3 grams of filament. You can access the file in OnShape here.