Sand sculpture contest highlights Homecoming. #PentwaterHomecoming2017 By Ron Beeber. Contributing Writer. PENTWATER — What’s special about Pentwater that can be sculpted from damp sand on Charles Mears State Park’s beautiful beach? This year’s Pentwater Sand Sculpture Contest is Friday, August 11, and teams this year will be judged on how well they sculpt a design that reflects Pentwater’s 2017 Homecoming…