I’ve been wanting to try out the Shapiro design lab, but I never really knew what to print or how to design, so I decided to make this sticky note holder as an intro project to 3D printing. I made it in Tinkercad out of a box template and added thumb cutouts to make it easy to pull out a sticky note. The inner dimensions of the box are 3x3 inches (the standard size of a Post-it), and though the sticky notes fit, it’s a little tight since it’s the exact size. If I were to print another one, I would add a few millimeters of wiggle room on each side. Besides that, though, I’m pretty happy with how it turned out!