Fun stuff to add to pen pal letters

"Happy Mail" is basically snail mail, except you try to cram as much joy into one envelope as you can. Here's an epic list of 45 flat, mailing friendly things to put in your letters for your penpal, plus tricks and tips for starting the habit of writing a

penpal starter kit

Here are 16 ideas of flat things to include in some happy mail to make receiving post extra special for a friend or pen pal. Add something fun and sweet to your card or letter and make a friend smile extra big when the postman drops off the post!