In less than three hours, with only a cordless drill, construct an elegantly austere chair to adorn your garden or patio. No experience with woodworking, power tools, or carpentry is necessary during this fun and industrious workshop led by local horticulturist and woodworking instructor Dan Benarcik. Bring your own fully charged cordless drill (no impact-drivers, please). Register by April 18. $250; $225 for Winterthur and DMNH members.