Studies show making or doing things with your hands increases happiness (i.e. provides doses of happy neurotransmitters). This makes sense from an evolutionary stand point - reward for doing and achieving things.

Examples:

• Crafts! Make a Mala (aid for meditation): https://www.youtube.com/watch?v=0OYLTsdNqy0

• Gardening

• Growing Medicinal Mushrooms

• Painting & Other Arts