Giant bubbles are possible with simple, homemade equipment. Giant bubbles can be the size of a large whale. Alan McKay of Wellington, New Zealand is on record as having created a bubble tunnel more than 100 feet long. A list of official world records can be found at recordholders.org. Fun Fact! A six-foot diameter bubble requires as little as 3 to 4 ml (less than one teaspoon) of bubble juice. A 40-foot long tube with a 3-foot diameter may use only 15 ml (one tablespoon) of juice!