I think people who don't plan a little ahead to put their drinks in the refrigerator before hand, will be the same people that won't remember to freeze this device in advance either.
Also couldn't you just put several popsicles in a glass and fill it up with your favorite beverage and wait a minute; bam! Instant cool drink. :D
Also couldn't you just put several popsicles in a glass and fill it up with your favorite beverage and wait a minute; bam! Instant cool drink. :D