From the Party 'Bots Party Supply Collection. Party 'Bots Thank You Cards. Thank your guests in a futuristic way with these 3D style thank you cards. The front of each card has a robot surrounded by stars and planets and reads "Thank You" along 3D designs that seem to pop off the thank you card when using the special 3D robot masks (sold separately). Includes 8 thank-you notes with envelopes.