Build Memories That Last! JRHammel Construction Services will provide tools, materials and supervision required to provide your son/daughter and up to 9 other friends the opportunity to EACH build one of our custom projects. Yes, ALL 10 participants will be constructing their own project and all 10 will be the same project type. You may choose from one of these three options: Birdhouse, Picnic Table, Lemonade Stand. Coordinate your party date during a weekend afternoon and we will meet with your group and help the kids build, paint and deliver their custom projects to each of their homes.