One seashell decor idea involves gluing shells onto a cardboard container to create a treasure box. Another seashell decor idea involves tying shells to a string of pearls to create a garland.
To make a treasure box with seashells, first coat the cardboard container with acrylic paint. After the paint dries, apply the shells. Better Homes and Gardens recommends starting with the bigger shells and ending with the smaller ones.
Make a string of garland with seashells by attaching bell caps to the shells using epoxy. Sand dollars do not require bell caps. After the epoxy dries, take cord or ribbon and tie the shells to the string of pearls.