Thorn fractal
thingiverse
This is symmetrical thorny structure, not sure how it would do as a print but I would recommend using a .4 nozzle and a fine resolution. You can also increase the top surface skin layers in Cura. I think it would look really cool as jewelry too. Please send pics if u wind up testing it out.
Download Model from thingiverse
With this file you will be able to print Thorn fractal with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Thorn fractal.