I've been 'volunteered' to take a 15 minute enrichment class for the ladies at church. They initially wanted me to teach scrapbooking, but in 15 mins? I don't think so

I thought instead I'd teach them to do some kind of quick and easy paper craft, but I could do with some ideas/suggestions from you chickies. Has anyone got any ideas to share? Got any quick crafts that adults will enjoy? Most if not all of these ladies will not have done scrapbooking at all, or even paper crafts before. I expect about 40 ladies will attend, broken down into three groups.