Inflatable pink flamingo coasters (1 dz) by Fun Express. $13.99. 7 1/2". They float!. Holds 12 oz sodas. 1 Dozen per set. These inflatable pink flamingo coasters measure 7 1/2" and are perfect for those 12 oz sodas at your next beach party or Hawaiian Luau. They're great for keeping your drink handy in the pool too, because these flamingo coasters float! 1 dozen per set.