Cubavera has select Cubavera Men's Polo Shirts (100% cotton jersey or slub knit styles available) for $10 - 40% off with coupon code CV40SALE [Exp 4/5] + $5 shipping = $11 shipped. Retail price was $50 to $60.

Shipping is a flat $5 per order, so you can get multiple shirts for about $6 each with just the one shipping charge.