From birthdays to baby showers, show your appreciation for gifts received and time spent together with the Chalkboard Thank You Card Pack from Hortense B. Hewitt. With a black background that mimics the look of a chalkboard, these blank notecards are accented by looping filigree and "Thank You" text in script lettering, and look like white chalk on a chalkboard. Use the blank interior to craft a personalized message to the recipient.