Uploaded to MakerWorld by request of several people helping Kari Lemieux, who's husband was recently diagnosed with end stage renal failure. He has a passion for 3D printing, and after a post in the 3D Printing Facebook group, a lot of people in the community decided to pitch in and print tons of these and donate them to local hospitals and dialysis clinics all over the world. I've uploaded this 3mf file that holds 142 of them on one build plate. You may or may not have to use a brim, depending on your individual printer/filament. Let's get these out to the world!

I did not create the original file. I've linked to the original on thingiverse. I just wanted to maximize the build space on the Bambu printers.