Costco FREE Sample: Kirkland Signature Supreme Diapers 2-Pack by Rhonda July 24, 2020 July 24, 2020 For a limited time, Costco members can get a FREE SAMPLE of Kirkland Signature Supreme Diapers 2-Pack. WHILE SUPPLIES LAST. Click here for the sample. It will take you to Costco’s… 0 FacebookTwitterPinterestEmail