Free Race Car Workshop for Kids at Home Depot today, Saturday February 1, 2014. Bring your kids (ages 5 -12 years old) to your local participating Home Depot store for a cool hands-on children’s workshop. Children will receive a free apron and learn how to build their own race car. This free kids’ workshop will take place from 9:00 am through 12:00 pm during normal store hours. Check with your local Home Depot for more detailed information.