We like to use jars to hold flowers, but the top isn't always the correct diameter for the number of flowers. These inserts make it easy to customize the opening size for fewer flowers. It's a pretty simple design, but effective. I also included a container for the set to help keep them organized. scale the top up or down to adjust the fit. It worked for me with Hatchbox Matte PLA, just enough friction to keep them from falling apart but not so much that it's tough to open. I imagine it will vary by filament and printer though.

Bambulabs

Bambu P1S

No

No

0.2

NA

I used octagram spiral for both the top and bottom patterns to give it some texture.