You're required to enroll in the Build-A-Bear Bonus Club rewards program in order to claim the deal, according to a press release. It was previously announced that anyone, young or old, could walk into a Build-A-Bear store on Thursday and purchase a Make-Your-Own stuffed animal for a price that corresponds to that person's age. The one-day summer promotion is meant to kick off the retailer's 'Count Your Candles' birthday program. Prior to the announcement, the promotion had been planned to last throughout the day on July 12. Therefore, we strongly encourage Guests to consider delaying their trip to Build-A-Bear, and we appreciate everyone's understanding and patience in this matter,' the company said. As such, our goal with the voucher extension is to enable us to better flow traffic to the stores over the next several weeks to avoid long lines and wait times as much as possible. 'It is our sincere desire for all of our Guests to enjoy the best Build-A-Bear experience possible.