SKULL 40: EXERCISE & PRACTICE

From Kxx. See full project here.

SKULL 39: IKEA SKULL

From Ivan Twohig, a sculpture made from cardboard with each edge of the skull lined with IKEA measuring tape.

SKULL 38: WEBUYYOURKIDS

From Australian artists Sonny Day and Biddy Maroney, or just Webuyyourkids.

SKULL 37: YALE SKULL & BONES SOCIETY

From Yale University, the logo of The Skull & Bones Society.