Revelers dance and shout as they listen to music, in front of the main stage, during the 21st Woodstock Festival in Kostrzyn-upon-Odra, Poland July 31, 2015. An estimated 200,000 people attended the ongoing festival, a brainchild of Polish journalist and social campaigner Jerzy Owsiak, on Friday. Owsiak initiated the event to say thank you to those who donated money to his GOCC charity organisation that delivers medical care for children. (Photo by Kacper Pempel/Reuters)

Santa Claus rides in his sleigh as he prepares for Christmas in the Arctic Circle near Rovaniemi, Finland December 15, 2016. At Santa Claus' Lapland home in Finland, his helpers sort out piles of letters from around the world, each detailing children's requests for this Christmas. (Photo by Pawel Kopczynski/Reuters)

San Francisco-based design professor Miguel Cardona is selling his custom-drawn “Sketchcups” at Café Sophie for US$20 a piece to benefit Project Night Night, a charity that donates baby blankets, books, and toys to children in homeless shelters. Cardona discusses the project in an interview with Coolhunting. If you'd like to purchase or commission one of Cadona's pieces for yourself, you can do so for US$30 at his Sketchcups Store.

Children watch a rabbit, jumping over a hurdle at an obstacle course the 5th Open Rabbit Sport Tournament (5. offene Kaninchensport Turnier) on August 28, 2011 in Rommerz near Fulda, Germany. Eighty rabbits competed in light-weight, middle-weight and jumping-for-points categories at today's tournament in Rommerz that is based on Kanin Hop, or Rabbit Hopping. Rabbit Hopping is a growing trend among pet rabbit owners in Central Europe and the first European Championships are scheduled to be held later this year in Switzerland. (Photo by Ralph Orlowski/Getty Images)

An Afghan child practices walking with his new prosthesis at the International Committee of the Red Cross (ICRC), orthopedic center on September 10, 2011 in Kabul, Afghanistan. After more than 30 years of war and a decade since the 9/11 attacks in the United States, thousands of Afghans, both military and civilian, continue to pay a heavy price from the conflict. The ICRC center makes prosthetics for amputees and helps them, as well as Afghans with spinal injuries and children with congenital birth defects, to learn to walk. (Photo by John Moore/Getty Images)

Stormtrooper Jacob French is pictured on day 5 of his over 4,000 kilometre journey from Perth to Sydney approximately 25 kilometres from Mandurah on July 15, 2011 in Perth, Australia. French aims to walk 35-40 kilometres a day, 5 days a week, in full Stormtrooper costume until he reaches Sydney. French is walking to raise money for the Starlight Foundation - an organisation that aims to brighten the lives of ill and hostpitalised children in Australia. (Photo by Paul Kane/Getty Images)

A woman swings a child around a fire, where an effigy of the demon Ghantakarna was burnt to symbolize the destruction of evil, during the Ghantakarna festival at the ancient city of Bhaktapur, Nepal August 12, 2015. According to local folklore, the demon is believed to “steal” children and women from their homes and localities. (Photo by Navesh Chitrakar/Reuters)

A person dressed as the Krampus performs during the 9th Krampus meeting show in Serfaus, Tyrol, Austria, 12 November 2016. Several thousand people watched the parade of about 27 artists groups from Austria and South Tyrol, Italy. The Krampus is a folklorical figure who, during the Christmas season, punishes children who have misbehaved. (Photo by Christian Bruna/EPA)