Walmart offers the Intex Mega Chill II Floating Cooler, model no. 58821EP, for $13.91. (
Amazon charges the same with free shipping for Prime members.) Opt for in-store pickup to dodge the $4.97 shipping charge. That's the lowest price we could find by $8. It holds up to 72 soda cans with ice and will fit up to a 48-quart cooler. It features six cup holders, four heavy-duty handles, and three air chambers.