1. Preparation: dish soap, toothpaste, glue.

2. Specific steps

(1) Squeeze an appropriate amount of toothpaste into the bowl, add a little water, start stirring, and keep stirring until the toothpaste melts.

(2) Take out a box, pour the mixed toothpaste into it, and add a little detergent.

(3) Shake the box up, down, left and right to get a box of foam.

(4) Pour the foam into the bowl. The foam looks very delicate. Pour in a little glue, stir evenly, and then add glue in small amounts and multiple times to form.