These lovely stepping stones are instantly coveted by many people. Are you among them? Then do this: Start by varnishing the bottom and 5-8 cm up the sides of the inside of a card box with Oceanlack. Let dry. Stir together a thick concrete mixture comprising 5 parts concrete and 1 part water - add more water if needed (wear a mask and gloves). Place a leaf in the bottom of the box and carefully apply the concrete mixture over the leaf. Cover the rest of the bottom, press down the concrete and smooth out the surface. Let harden for 2-3 days before tearing off the card box. You can also watch our video for more tips and inspiration.