Sorry, no longer available but see current Freebies by Mail at Freebies 4 Mom. Request a free sample of Pull-Ups Learning Designs Training Pants and Night Time Training Pants from Costco. Just click on the “Get a Sample” button to get to the free sample form. A Costco membership is not required to get this sample. You should receive your sample within 3 to 5 weeks. Thanks goes to Yiling for sharing! Find out what other free samples from Costco you can sign-up for. Each sample offer is different – some are for everyone and some are only for members.