Eye Drop Saver/Holder

thingiverse

This will enable you to preserve a single-use eye drop vial after it has been opened for future use. Option: You can attach two 1/4-inch nuts to the underside to add some mass and enhance stability. If you don't have 1/4-inch nuts, anything that fits in a 0.257x0.562x0.496 inch space with some adhesive could work. You can also install felt pads to make it more furniture/counter friendly. Drop Holder 2 is smaller and doesn't use the 1/4-inch nuts for added mass.