This is very cute! I once made a strawberry topiary, but never candy! I love the idea & I really believe that it's going to stand out & look so wonderful! Good idea.
They are Foam shapes purchased at a craft store, you can buy them already attatched to the flower pots or you can just buy the foam shapes and put them in any pot you would like. Then the gum balls are just hot glue gunned right onto the foam.