I find that sitting on the back deck, my ice cubes melt before my drink is finished. I thought wouldn’t be cool to find a giant one-cube tray but didn’t have any luck. However, my Google search led me to www.prepara.com. This site is full of kitchen gadgets including 2” ice ball molds. I bought a package of 4 molds on-line for $20 including shipping and handling as the company is based in New York. They are easy to fill and freeze overnight. I made up a batch of two dozen at home and took them to the boat for the weekend. I made some with mint leaves for my mojitos and others with lemons and limes. They last a lot longer than a traditional cube and are a great conversation piece!