In teaching the girls to manage their money following the Dave Ramsey & Rachel Cruze Smart Money Smart Kids method, Sonya came up with the idea to use Mason jars for banks. She wanted the jars mounted on the wall, and for each jar to have its own label. I designed these three piece brackets around standard quart Mason jars. The ring fits around the neck of the jar, and slides in to the bracket. The labels simply slide into a slot on top of the bracket.
The design has one drawback, namely that once the jar is mounted to the wall, you cannot take the jar out to remove the contents. But if you're trying to teach a kid to save money, that might not necessarily be a bad thing. The back of the jars are flush against the wall. I considered a design that would incorporate a screw mounted jar, but the jars I have are not round, rather they are slightly flattened on
The most challenging part of this design was shaping the bracket so that Icould snap the ring into it while having a close fit. The first model worked when I snapped it together, but when I tried to put it together with the jar in the ring, the bracket edge got hung up on the side of the jar. So I reshaped the bracket with a little bit of round taper towards the middle of the bracket. We really like how they turned out.
You can download the files from Thingiverse and print them yourself. Or you can order the set HERE.
I printed one of these on my Airwolf3d V5.5, and the other two on my X3REX modified Prusa i3. in both cases, I used .3mm layers with 45% infill. Since the pieces are all flat with no overhang, there is no support necessary.