Oonies are the coolest way to create! Take an Oonies pallet, place it in the inflator and watch it magically grow into an Oonie! They stick to each other so you can make amazing creatures and designs! No glue . No water, no mess. Just air filled balls of amazing fun! MONSTER MASH THEME PACK - Create the Weirdest Oonies Monsters you can think of. Heaps of accessories so you can inflate and create monsters galore!