When I first shuffled through the envelopes I knew that this could be a great one to send to Jean as the first non-diagonal one.
The muscle car stamps provided me with a great color match and contrast (gives a whole new meaning to 'forever').
I used the font 'cracked', and color-matched the letters to the car on the stamp.
The back after sealing:
I don't often notice anything special about the inside of the envelopes, but this one almost had the effect of a special lining:
Great thing is, Jean liked this one, too.