Print two and match them together to make a floating optical illusion.

Strongly suggest that you print with a bit more infill and perimeters. The stand is under stress from the thread, this will cause the arms to bend and loosen the thread over time.

I used sewing thread, but a final solution should use fishing line and some as thin as you can find. This will help to complete the illusion of a floating stand.

Incase you want the iris ball in the image: https://www.thingiverse.com/thing:29302

A suggestion during the build: The center string should be the last one you tighten/secure, as this will insure a proper tension on the three outside lines. Have some helping hands as this is a three hand project.