Bubble machine is a kind of children's toy that can automatically blow bubbles. The principle is that air squeezes bubble liquid.

The liquid of the bubble machine can be prepared by itself. The method is as follows: 1. Prepare 2 cups, 1 tea bag, sugar, boiled water and detergent.

2. Take a cup and pour it into boiling water, and put it into a teabag.

3. Add 1-2 tablespoons of sugar to the empty cup, pour some detergent, pour tea, and stir with chopsticks, so that the bubbles blown out by the bubble water are big and not easy to break.

4. Cut the soap into small pieces and put them in a cup, then rush into hot water to melt the soap pieces.

5. Add some sugar and a bag of tea to the cup.