Day 344/17. A bit too much foam there?

A couple of years ago we bought this Fire Engine from Lymington market for a grand total of £7.
2 years later, not only does it still work (amazing given 2 grandsons use) AND it is still on the first set of batteries, BUT it also is still producing bubbles. Today the atmosphere must be right for the big bubble production.
2 years, £7 , a bargain.