Single fuse cakes are easy to use and are great for parties. They come in a variety of types and can be used either on their own or as a combination. It's just great fun to see what they do! Some of the cakes fire shots where as fountains cakes fire pilars of colour and crackles. General rule of thumb is, shot cakes are high volume and fountains don't have bangs in them, which is great for entertaining the smaller children.