I send cards to my godchildren and their assorted siblings for just about every holiday. They are all reaching an age where it's really fun because they enjoy mail. This year I'm putting this little guy with a package I'm mailing.
I found some free coloring pages on the internet (by just searching 'free Valentine's coloring pages). I cut them out and glued them to a card. I then took three colors and tied them together and then hot glued them down (you could also use zots (glue dots)). I figure the paper will rip off so you can use the crayons.
If I were going to mail these I'd add a piece of bubble wrap so they crayons won't push through the envelope in the mail.
I'm adding a message inside, and then it's ready to roll!