Who Were They?

A dramatic looking card with white snowmen on a black background proclaims “Hi!” along with the holly and candy canes. The candy canes are cut-outs.

Here on the inside you can see the white text on a red background which proclaims “Greetings of the Season!” The text inside creates the lines on the candy canes when seen from the outside. The card was signed “Mr & Mrs Pink Maples.” I wonder if that’s the name or a code name, haha.