I really liked the original design but needed a few custom features to better suit my needs. To prevent the pieces from falling out, I added a small bump to hold everything in place. Since I only use two digits in my signs and exclusively use dollar symbols, I created a slim dollar tile and a blank tile for single-digit prices. I had to remodel the pieces to achieve these changes, and I am only uploading the pieces I modified.
For the complete number sets, you can refer to the original files. Additionally, I am including the STEP files for the parts I remade, so others can easily create their own custom pieces.
The author remixed this model.