Target cuts 30% to 40% offmen's clearance swim trunks. Plus, coupon code "EXTRA10" takes an extra 10% off, yielding deals from $15.73. Shipping starts at $4.99, or get free shipping on orders of $25 or more. (In-store pickup may also be available.) Coupon ends August 1. A couple of best bets, each with $4.99 for shipping and with prices after coupon:
Street Moda via eBay offers these Men's Boardshorts in 14 colors (Black/Gray pictured) for $11.99 with free shipping. That's $48 off and the lowest total price we could find. They're available in sizes 28 to 40 and S to XL, although not in all size/color combinations.