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
The making of the fairy doors Here are step by step progress photos. ( Polyurethane foam and hand painted with acrylic latex. The hardware is made with Sculpey and also painted. The medallions are jewelry findings.