Cards

• Made with items like paper, glue, crayons and other items found around the house, valentine cards are one of the simplest items for kids to make quickly.Jupiterimages/Photos.com/Getty Images
  
  Children can create cards quickly and easily with only a piece of paper and some crayons. For more elaborate cards, colored construction paper, scissors, glue and even glitter can be used to create 15-minute preschool craft valentines. Allow extra time for the glue to dry, or use a glue stick. With young children, supervise carefully when allowing them to use scissors.
  
  

Cookies

• Creating heart-shaped sugar cookies only takes 12 minutes, and you can use the other three for frosting, or coating with pink sugar.Jupiterimages/Comstock/Getty Images
  
  If you keep sugar cookie dough frozen in the freezer, or even if you buy the dough ready to roll out, these quick and delicious heart-shaped sugar cookies can be made by your preschooler in under 15 minutes. Your preschool child will love working the cookie cutter, sprinkling the cookies with pink sugar prior to baking, or even frosting them, if you've got a little bit of extra time. Help him place cookies in a cellophane bag, tie with a pink or red ribbon, and your little one will be ready to give the delectable treats.
  
  

Treat Bags

• Candy hearts, red hots and chocolates all make quick and easy treat bags for your little one to share.Jupiterimages/Photos.com/Getty Images
  
  If you keep a bag of chocolates, red hots or other candied treats at home, have your little one fill a small cellophane bag with some of them. Tie the bag off with a ribbon and let your little one include a handwritten note with the treats. Punch a hole in the note and tie onto the bag. These are a great 15-minute valentine craft for preschoolers to take for classmates.