Diabetic Needle Holders

I need a morning and evening shot for my Diabetes control and I sometimes get distracted and forget if I have taken my shot. I made these needle holders so I can tell if I have used a needle. They hold 14 needles or a seven day supply for me. I use the Droplet brand needles shown in the photo which fit snugly in the holes and don't fall out. There are three files. One is a box version that takes a while to print, A strip with legs to stand up and a plain strip.