I found this cute template to make mini envelopes. You can make these for anything (mini birthday card, gift tags, etc.), but I think they are the perfect size for Valentine cards. You can print them on colored paper or paper with a design, or you can print them on white paper and decorate with markers and stickers. Whatever you decide, these are fun to make...and so cute! You can get the template for these envelopes here and an idea that uses them here. The smitten hearts paper used to make the above envelope can be found on Tricia Rennea’s blog (one that I absolutely adore!).