I got this as part of the Oxo kitchen tool set.  I wondered what I was going to do with it.  Well, it gets a lot of work.  If you don't have an ice crusher, just put some cubes in a plastic bag and wap them a few times, instant crushed ice.  Same thing with crackers or nuts.  Anyway, it gets used, maybe not what it was meant for, but it's good to have around.