How To Train Your Dragon 2 Plastic 22in Bubble Balloon. Different image of your favorite Dragon characters including Hiccup and Toothless on each side of balloon. Stretchy plastic balloons that inflate round with smooth, wrinkle-free seams like a beach ball, creating an amazing 3-D effect from every angle! They never oxidize and are non-allergenic - and they float for weeks! Single Bubble Balloon - shipped flat.