Wiktionary
bubble blower
n. A children's toy in the form of tool for making bubbles by blowing on a membrane of soap water or similar fluid sticked to a circlet.
Usage examples of "bubble blower".
Each was larger and brighter than the one before it, as if the bubble blower were growing and gaining experience.
Now Lisbeth had the bubble blower while Maertge fed baby Johannes bread softened with milk.