Use a sponge to soak up concrete mix in whatever shape you desire and let it harden into a hardened version of what you just cut out! Pavers or garden accents? (I would wear rubber gloves while dipping/soaking!
Serendipitous Discovery: Bring the Beach Home - With a Sand Bowl. Going to do this when Marie and Teegan are here. Take everyone to the beach and bring back sand to make this. A little piece that adds another family memory.