I modified the Life Tracker design by Meteorpanda to make an Advent Christmas Ornament. I modified the bottom and made a new top piece. to replace the top numbers on the original. The middle sections with number wheels and springs are the same as the Life Tracker design. I didn't change those. I printed all the pieces on a New Matter MOD-t printer but the star base was slightly too big so the print shifted and didn't print the hole in the top to hang the ornament. I'm sure the design can be improved on as well. I did this for my Filament Friday show on YouTube. You need to print one of each file and two of the springs.