Great idea to make a pathway with rock footprints imbedded in the path. The rocks could represent kids, grandkids, friends, family, those that have passed away or the steps you have taken in the right direction to change your life. The meaning could be endless.
Paver Flowers - this would be fun with custom middles the kids make (same size as some of the aggregate pavers) with colored glass beads. Fun keepsake stepping stones adding a splash of color in the flower beds.