I saw this water bottle ice cube tray a few months ago and thought it was kind of silly…until I went to the beach. I planned to fill my bottle with ice (since it is 900 degrees outside) and just a bit of water so it would stay cool longer. Have you ever tried to shove crescent shaped ice into the small mouth of a water bottle? It isn’t exactly easy – not impossible, but a bit of a pain. These ice cube trays are starting to look a bit more appealing to me now.