PUCKER UP: FREE PRINTABLE LIPS ENVELOPE SEALS
I've never actually made my own, but here goes: lips in red, pink and purple envelope seals for Valentine's Day!
To use them for your cards or letters, it's easy enough if you have a printer at home and sticker paper. Or, you can have them printed at a copy store. Be mindful that the colours on the screen may appear different than the colours on paper.
Peel the backing off, and you have instant envelope seals! (Insert lip-smacking sound here.)