Wonder World Toys, located at 23 South Main Street in Medford, is hosting a Crazy Aaron’s Thinking Putty making class on July 29 anytime between 5:30 p.m. and 7:30 p.m. The community is invited to come and make a creation. The event is free but limited and open to kids age five and older. Participants must register by calling (609) 953–1118.