These flat pieces from Maine’s  Bonnie Bishoff have me questioning my vision.

Even though the “Hello Handsome” men’s jewelry show has been postponed, Bonnie can’t stop pursuing the ideas she came up with for the event.

These are 2D pieces that fool the eye into believing they’re 3D. They’ll become brooches once Bonnie finishes refining them. “You can’t imagine how many little tweaks it takes to get to this point,” Bonnie says.

See these and more of her brain-teasers on Facebook and Instagram.