These members of the Circus School of Arizona (CSA) perform the Bed-Of-Nails-Trick: The woman in her swan costume is lying on this dangerous bed of nails. In this supine position she obviously enjoys the nails - even with additional wight.
Tempe Festival of the Arts (December 6 - 8, 2013): http://www.tempefestivalofthearts.com/.
Please, check out the set of six pictures in my portfolio!
Photo Taken On: December 07th, 2013