How to make it hard and “melt” slowly?

Hey, dun get too excited, I am running a healthy personal blog here, sorry to disappoint you but I don’t have any remedy to men out there needing a boost or two. :P

For those of you out there that fancy an ice-bed display during your next house warming or cocktail party, you can sprinkle some fine salt on your ice to make them harder. They will stay in shape for longer period of time and will not melt away too fast.