Grow Bumble the Snow Monster From Rudolph the Red Nosed Reindeer - Watch it Grow in Water Grow A Bumble the Snow Monster Toy from Rudolph the Red Nosed Reindeer Put in water and it will grow in size and it can be used over and over Size before you grow it is 1 3/4" high will start to grow within 2 hours and reach full size in 72 hours After removed from water and starts drying it will return to near original size