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Valentine Crafts: How to Make a Mailbox from an Empty Cereal Box


Why throw away an empty cereal box when you can use it to make Valentine crafts?

With a few simple supplies, kids can make Valentines mailboxes to hold cards from their friends.

Difficulty: Average
Time Required: 30 minutes

Here's How:

  1. Close the open end of the cereal box and seal it shut with masking or packaging tape. This will become the bottom of your mailbox.
  2. Using an X-Acto knife, slice through what is now the top side of your mailbox at an angle, as pictured, leaving the lid intact on the back so the mailbox lid will flap open and closed but won’t come off entirely.
  3. Working one side at a time, cover the mailbox with glue, and then cover the glue with red construction paper cut to the size of the cereal box panels.
  4. Using the X-Acto knife, cut a horizontal slit under the flap. This is where classmates will insert their Valentine cards.
  5. Either write by hand or print out the word “Post” or "Mail" onto white paper using your computer. Cut out the letters and glue them to the front of the mailbox, just below the slit. Optional: Write your name on the box or print it out off the computer and glue it on. This step might be necessary if this is a classroom project and all the mailboxes will be displayed together.
  6. Decorate your box as you like, perhaps using stickers, drawings or hearts cut from pieces of construction paper, newspaper, magazine pages, discarded sheet music or other scrap paper.
  7. Attach the mailbox to your school desk with duct tape or use pushpins inserted in the back side of the mailbox to attach it to a wall.


  1. Don't wait until Valentine's Day to make a mailbox. Siblings might enjoy hanging these outside their bedrooms and "sending" each other mail.
  2. Keep the age and ability of the children in mind when using X-Acto knives. That might be a step best handled by adults.

What You Need

  • An empty cereal box
  • Red construction paper
  • Scraps of other paper, such as magazine pages, sheet music, etc.
  • Glue
  • Scissors
  • An X-Acto knife
  • White computer paper
  • Tacks or duct tape, for attaching the mailbox to a desk or wall
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