I am looking to see if there is a product that will instantly become
cold but is reusable. I know there is a product that is instant for
the first time but then you put it in the freezer for later uses. I am
looking for one that will instantly freeze over and over. They would
be kind of like the instant reusable heat packs that heat up at the
snap of a button. he only difference is they would freeze or become
cold. Please email me at japangadgets@yahoo.com
$10.00

Unfortunately, you are up against the 2nd law of thermodynamics here. 
Things cannot lose heat to a warmer object spontaneously.  In other
words, for something to be cooled below ambient temperature requires
an input of energy.  The "one-off" devices probably have this energy
stored chemically, and once it is gone, it is gone.
The only practial work-around may be to have a supply of liquid
nitrogen (which would require energy to create of course), and use
this to snap-freeze your cold pack.