Many gardeners enjoy starting some of their own plants.
A favorite in this group is the Avocado seed after the Avocado has been enjoyed. The seed can be started in soil or in a glass or jar of water. Select a narrow mouth jar or glass. Insert three or four tooth picks in the Avocado seed about mid-ways from the base or point of the seed. The toothpicks form arms that prevent the seed from falling into the water.