Hearts Bracelet in NinjaFlex
This is a super simple bracelet that you can print in NinjaFlex. It's very light and flexible and sized for a loose fit on a woman's wrist. It's a good starter thing to print once you've got NinjaFlex working on your printer. You can try resizing if needed but be aware that this will affect the strength and flexibility of the print. I might later throw up some different sizes that maintain the thickness.
Update: The lovely people on the FreeCAD forums helped me smooth things out a bit and I added some sizes (unstretched bracelet circumference of 7.5", 8.5", 9.5").