I love this collection. The explosion box is really easy to assemble. It took me longer to cut out the pieces than it did to put together. The score marks also help in the placement of certain elements. This is a pretty large box, and I like that you could use the elements separately. Like if you wanted to use the party hat alone or with another project. I intend to give this as a gift with a gift card in the party hat, which is in the center of the explosion box. Layers and layers of surprise!