These are officially licensed greetings cards that could be printed off in the late 1990's and the early 2000's on the old classic Crazy Bones website. Each card featured artwork involving a classic Gogo's character in a situation that involves the celebration.
These are officially licensed Gogo's (2007) Birthday celebration cards. These cards could be purchased at most stores that sold celebration accessories or on online stores such as Amazon. The cards could be purchased in a bundle or individually. Each card features a character from the Gogo's (2007) series and a greeting to the recipient.