Disney Cruise Line offers a 20-ounce refillable beer mug on all cruises. The purchase price is $14.95 (as of 8/30/09); refills are $3.75 - which gives you 20-ounces of beer for the 16-ounce price.

When asked, Disney Cruise Line has stated that the beer mugs will only be refilled on the cruise that they are purchase, however, many cruisers have reported that this is an unenforced policy.