Most of Hosokai's dresses carry price tags ranging from 150,000 to 300,000 yen($1,930 to $3,860), but she has sold a set of balloon dress, headpiece and bouquet for 1 million yen.
Each dress lasts only 24 hours at most before it starts to deflate, while some change color depending on the temperature and humidity.
Hosokai, who began her career as a florist before expanding into balloon art and opening her "Daisy Balloon" office ten years ago, hopes to lift the profile of balloon fashion and attract customers eager for unusual party wear.
She has sold more than 20 wedding dresses since entering the business two years ago and would be pleased if her ephemeral garments helped lift spirits in the wake of Japan's March 11 disaster by reminding people of their childhood dreams.
"You can wow people at parties or weddings with a balloon dress. They'll be surprised, " she said.
Daisy dress by Rie Hosokai
