Duck Donuts has announced that it will be celebrating National Rubber Ducky Day with free donuts and rubber ducks exclusively for Duck Donuts Rewards members.

Guests who use the app will receive an offer for a buy one, get one free half dozen donuts and a mystery rubber duck. The offer can be redeemed National Rubber Ducky Day on Wednesday, January 13 through Friday, January 15.

In order to receive the buy one, get one free half dozen donuts and mystery duck, guests must download the Duck Donuts Rewards app by January 12, 11:59 pm PST. The app can be downloaded for free from the Apple Store and Google Play. Rewards members can order ahead in the app and Skip the Line or scan the app in-store to pay. Consumers will earn five points for every dollar spent that will unlock rewards as the status levels increase, including free donuts and coffee, as well as receive surprise offers throughout the year.

The origins of National Rubber Ducky Day stem from Sesame Street. Ernie, the show’s lovable orange puppet, declared January 13 as his beloved rubber ducky bath toy’s birthday and is recognized on this day each year. The rubber duck has been a mainstay at Duck Donuts as well.

“Not only are our shops known for selling delicious donuts and coffee, but also our extensive line of rubber ducks including farm animals, princess, sports related and so much more,” says Russ DiGilio, founder and chief executive officer of Duck Donuts. “Whether you’ve visited our original location in Duck, North Carolina (hence our name) or one of our other 98 locations across the country, this National Rubber Ducky Day we’re giving our most loyal fans the opportunity to celebrate this fun micro-holiday with free donuts and a chance to add to their rubber duck collection.”