Walmart: FREE Welcome Baby Registry Box This post contains affiliate links which means that we may be compensated if you click a link and make a purchase.. October 15, 2019 by Karen-Kupon Girl Leave a Comment Free Welcome Baby Registry Box Still available! Create a Walmart Baby Registry & you can sign up for a free Welcome Baby Registry Box! Click the ‘Free Welcome Box’ offer, enter the URL of your registry and then fill in the form to order yours! Free boxes available while supplies last. Allow up to five weeks for delivery of your free sample to arrive in your mailbox. **NOT mobile friendly! Please access the form from a desktop/laptop.