Wham-O Slip ‘n Slide at Costco! by Rhonda May 14, 2022 May 14, 2022 *UPDATE* 5/14/22. The Wham-O Slip ‘n Slide from Costco, the original backyard water slide, is back at select locations for a very limited time! This Super Slip ‘n Slide is… 0 FacebookTwitterPinterestEmail
