Costco Sale: Speedo Safe Splasher $9.99 by Rhonda July 16, 2020 *UPDATE* 8/8/18. This learn-to-swim aid has shoulder straps for extra security and a snug fit. Select Costco locations have the Speedo Safe Splasher Personal Flotation Device on sale for $9.99 (after … 0 FacebookTwitterPinterestEmail