Start attaching-pebbles use hot glue,but if little hands are sticking them down, you can also use a super-strong double-sided tape, such as the type used to lay carpets. It’s entirely up to you how closely you’d like to pack those pebbles, as the grouting
Every child decorates a stone and then adds a weatherproofing varnish. What an amazingly welcoming display! School counselors - could make it a great lesson on diversity & add stones to our school garden
Interesting idea for putting a play area on asphalt, concrete or hard soil in a temporary build. The tires and rocks can be removed, and the sand and rocks swept up. Interesting idea for day cares in urban settings without access to grass or soil.