Ladybug Valentine Mailbox Craft Kit. These smiling ladybugs don't mind holding your valentines for you. A great all-ages activity, our 5" x 3 1/4" papier-mâché Ladybug Valentine Mailbox Craft Kits include self-adhesive pieces for simple construction. Kids will love designing these Ladybug mailboxes however they want and then receiving all the fun valentines from their friends! All craft kit pieces are pre-packaged for individual use. Kits include instructions and extra pieces.