Lowe's hosts a free hands on building clinic for kids once or twice a month. Children in grades 1-5 can put together a project to take home. Here are examples of some of past projects that my kids enjoyed:
Tables are set up in outside the front of the store. Families check in with the Lowe's employee and kids receive an apron, hammer, and a kit. Directions are included in the kit. When the project is complete, kids return the hammer and receive a patch for their apron.
At the Pico Rivera location there are tables, but as you can see from everyone working on the floor, the hammers work better on the concrete. I usually bring beach towels or a large blanket to put on the floor where we work.
Build and Grow clinics are limited to the number of kits available. Register online to reserve a spot for your child, or if you are feeling lucky, walk in and take an open spot. Usually there are enough kits from no-shows for the walk-in participants, if not I've seen the employees hand out extra old kits so no one is left disappointed.