How to make your own float?

A friend of mine made it several times by himself. See his steps are as follows:

1, find a piece of wood first;

2. Cut the wood according to the volume of your float;

3. According to your favorite float shape, grind the wood with a grinding wheel;

4, finely grinding with fine sandpaper after grinding;

5. Draw holes and marks on the articles with a meat cleaver;

6. Paint the product and dry it after completion.