A West Ham supporter photographs bubbles with his mobile phone prior to the English Premier League soccer match between West Ham United and Southampton at Boleyn Ground stadium in London, Monday, December 28, 2015. (Photo by Frank Augstein/AP Photo)





Children try to catch soap bubbles in front of Hofburg palace on a sunny winter day in Vienna, Austria, December 23, 2015. (Photo by Heinz-Peter Bader/Reuters)





A migrant child watches bubble-blowing in Victoria Squares, where lots of migrants sleep rough, in central Athens, Greece, December 25, 2015. (Photo by Michalis Karagiannis/Reuters)





A bubble breaks on a child during a warm day in Central Park, New York December 25, 2015. (Photo by Eduardo Munoz/Reuters)





A child plays with soap bubbles at the Old Town in Krakow, Poland January 30, 2016. (Photo by Kacper Pempel/Reuters)





A child migrant blows soap bubbles as refugees and migrants wait to continue their journey towards western Europe from the Macedonia-Serbia border at a transit camp in the village of Presevo, Serbia, February 2, 2016. (Photo by Darrin Zammit Lupi/Reuters)





Children play with bubbles blown by volunteers as migrants and refugees are registered by the authorities before continuing their train journey to western Europe at a refugee transit camp in Slavonski Brod, Croatia, February 10, 2016. (Photo by Darrin Zammit Lupi/Reuters)





A man blows soap bubbles during a celebration to mark Maslenitsa, or Pancake Week, in Baikonur, Kazakhstan, March 13, 2016. (Photo by Shamil Zhumatov/Reuters)





A boy looks on as a woman makes soap bubbles during a celebration to mark Maslenitsa, or Pancake Week, in Baikonur, Kazakhstan, March 13, 2016. (Photo by Shamil Zhumatov/Reuters)





A street vendor blows bubbles to attract customers in Srinagar in the Kashmir region of India, March 20, 2016. (Photo by Danish Ismail/Reuters)





A street vendor blows bubbles to attract customers in a public park in New Delhi, India, April 4, 2016. (Photo by Anindito Mukherjee/Reuters)





People watch soap bubbles created by a street artist at the Brandenburg Gate in Berlin, Germany, April 20, 2016. (Photo by Fabrizio Bensch/Reuters)





Students blow bubbles during a commencement ceremony at Columbia University in New York, USA on May 19, 2016. (Photo by Xinhua/Barcroft Images)





Athletes run onto soap bubbles made by a man dressed in a Spiderman costume as they pass by the Old City walls during the Jerusalem Marathon in Jerusalem, 18 March 2016. (Photo by Abir Sultan/EPA)





Bubbles float at the Brandenburg Gate in Berlin, Germany, 23 May 2016. A Polish street artist sends the partly giant bubbles into the blue sky. (Photo by Paul Zinken/EPA)





A young boy plays with soap bubbles near Hofburg Palace at Heldenplatz, one of the top tourists attractions in Vienna, Austria, January 26, 2016. (Photo by Christian Bruna/EPA)





Visitors and children play with big and small bubbles in Cologne, Germany, 03 January 2016. The weather in Germany is divided between mild temperatures in the south-west, where as the north of the country is being subject to Siberian cold air. (Photo by Maja Hitij/EPA)





A man makes large bubbles in Central Park on a warm afternoon, March 10, 2016, in New York City. (Photo by Spencer Platt/Getty Images)





Migrant children play with soap bubbles as they wait to be taken to the train station in Sid, in Adasevci, about 100 km west from Belgrade, Serbia, Monday, January 11, 2016. (Photo by Darko Vojinovic/AP Photo)