This is for the macguyver contest.
materials:
Salt
An ice cube
And a puppet apparentley (The instructons for the contest seemed to want puppets when I made this, it must have been a typo but I ran with it)

Step 1: Prep

Take your solid state H2O and cover one end in sodium cloride. Doc Sock here prefers an ice cube and basic table salt.

Step 2: Application

Now press into the affected area for a minute or so. the area will turn a frosty white.
repeat as necessary. Beleive it or not the sock actually helped in the handling of the ice.