Furick Jazzy10 diffuser install tool.
The "base" is thicker than the original from Furick, in order to add strength (as this is where mine broke), and the infill can be increased to add additional strength, but 20% Gyroid infill seems to be the perfect combination for me and my Ender3 Pro and MatterHackers Build series PLA... but YMMV.
The author hasn't provided the model origin yet.