Gavin Gentry, top, Ramstein Elementary School student,

Gavin Gentry, top, Ramstein Elementary School student, places a painted rock while his mother, Danyelle Gentry, Ramstein Elementary School front office assistant, holds him at Ramstein Air Base, Germany, April 7, 2020. When coronavirus disease 2019 prompted the need for physical distancing, the Gentrys started a trend of decorating rocks and placing them along walkways for people to find. Others began doing the same and the Gentrys created an online group, Ramstein Rocks, which now has more than 150 members. (U.S. Air Force photo by Senior Airman Elizabeth Baker)