Personalize a pumpkin . Select a pumpkin still growing on the vine, scratch initials or name on the skin with a nail or penknife. The skin will callous over and as the pumpkin continues to grow, the name will grow too. Fun to do at any time of year. Plant cuttings .
Kids can start their own plants.
Sweet potato vine . Suspend a sweet potato with 4 toothpicks over the rim of a jar filled with water. The bottom should be under water. In a few days to a few weeks, roots will develop on the bottom and a vine will sprout from the top. Add water as needed.