The Custom Creations option is gone. Yep, poof! It disappeared. It used to be right under the Super Store option.
If you need your memory refreshed, Custom Creations was a relatively new feature in ourWorld that allowed you to turn your virtual pictures into stickers, which have been advertised with uses such as laptop covers, locker embellishment, etc. While ourWorld has yet to release an official quote on why they terminated the poor little shop, most speculate that it just wasn’t very popular.
Thank you to SingingInTheRain for the great screencap!