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.

SKULL 36: CRYSTAL HEAD VODKA

From Dan Aykroyd Wines: Crystal Head Vodka. And yes, that Dan Aykroyd from Ghostbusters fame.

SKULL 35: BROCK DAVIS EXPLODING LIGHT BULB

From Brock Davis and his Make Something Cool Everyday project.

SKULL 34: NOTEBOOK PAPER SKULL

From Zek Crew, who "produce random and conceptual visual interventions". Located in Ljubljana, Slovenia.

SKULL 33: HUNTER STABLER SKULL

From Hunter Stabler, hand cut paper skull.

SKULL 32: EVIL GENIUS

From Shapeaspect, the work of New Zealand graphic designer, Jeremy Evans.

SKULL 31:OBEY GIANT DIA DE LOS MUERTOS

From Obey Giant, Day of the Dead print collaboration with Ernesto Yerena.

SKULL 30: CLARK GOOLSBY SKULL IV

From Clark Gooslby, Skull IV, mixed media on canvas.

SKULL 29: CROCHETED TABLECLOTH

From Hildur Bjarnadottir.

SKULL 28: SMILEY FACE

From Guyco, illustration for an Esquire magazine article on Judd Apatow titled, "Death Comes For the Sausage King".

SKULL 27: HYDRO74 BACK IN BLACK 2

From Back In Black 2 T-shirt exhibition.

SKULL 26: LUCKY 13

From MOSTLYWANTED, the online portfolio of Tom Bagshaw, a London-based illustrator and designer.

SKULL 25: CHOCOLATE SKULL

From Ibrahim Dilek, a Threadless t-shirt titled, Bitter Teeth.

SKULL 24: NIKE MEXICO

From a Nike Mexico Sportswear Ad Campaign by 123klan.

SKULL 23: DAN MUMFORD

From Dan Mumford, illustrator, designer, screen printer out of London.

SKULL 22: JEREMY FISH

From Jeremy Fish, artist and illustrator.

SKULL 21: BELL & ROSS WATCH

From Bell & Ross, the limited edition Instrument BR01 Airborne Watch inspired by the WWII airborne divisions of fighter pilots. The dagger hands add that extra touch of badass.

SKULL 20: VIVA CALACA

From Ritxi Ostariz, Viva Calaca is a video based on the Day of the Dead.

SKULL 19: OIL DEATH

From Axel Peemoeller for Feld Magazine.

SKULL 18: THE SHINING POSTER

From Seattle-based Jeff Kleinsmith, the longtime designer and art director at Sub Pop Records.

SKULL 17: RAINY DAYS ANIMATION

Click link to view flash animation from Dutch interactive studio, Cartelle.

SKULL 16: RIP SLYME

Album cover for FUN FAIR, the 2007 release from the Japanese hip-hop group, Rip Slyme.

SKULL 15: HP LOVECRAFT POSTER

From Sebastien Vigne and Julien Notter

SKULL 14: HYDRO74 T-SHIRT

From the Back In Black T-Shirt Exhibition by Hydro74 AKA Joshua M. Smith

SKULL 13: ICE, ICE, BABY

SKULL 12: MOTORCYCLE HELMET

From Santiago Chopper

SKULL 11: TEA BAG

From skulladay.com

SKULL 10: AQUABATS POSTER

From Sonnenzimmer at Renegade Handmade

SKULL 9: SEX, LOVE & DEATH

From Mike Giant at White Walls Gallery.

SKULL 8: SUGAR SKULL TRIO

From Mike Giant at White Walls Gallery.

SKULL 7: SENIOR SKULL SOCIETY

From the University of Maine's Senior Skull Society, where membership is considered the highest honor for male students.

SKULL 6 EDUARDO RECIFE

From Eduardo Recife

SKULL 5: STORE DISPLAY

SKULL 4: KNISO

From Kniso

SKULL 3: COPPERTHISTLE

From Copperthistle

SKULL 2: BYE BYE APOCALYSPE

From a Threadless t-shirt by Budi Satria Kwan

SKULL 1: ALL IS VANITY

From C. Allan Gilbert