The idea is NOT new, i had it used on toys in the 1980s and am sure its used on other packages.
 Being that Nestle responded quickly it gave me the incentive to pot this idea so they can use it.

Just saw  report on FOX 5 NYc 2000729tu ~540 pm on a nestle baby formula starter package which uses those modern wrapped in plastic artificial (blue) ice packs to maintain their starter kits contents cool or to use those ice packs with ones own baby's formulas / juices etc cool, these word on the plastic then would advertise the Nestle brand as they use the artificial ice packs.

. Well the report stated how a family almost confused the ice pack for actual baby formula as the plastic cover of the "chemical ice" pack had an advertisement on it in a manner [big letters] that one MIGHT think it was the actual formula inside not chemical / artificial  ice inside the plastic package.  Even a person at a poison control center thought it could be confused for a baby formula.

   An idea is since those ads lower the price of product hence needed specially with the price of everything going up faster than one earnings then why not Nestle use 3 Dimensional / holographic printing  that as one slightly moves the ice pack the word WARNING or  AVISO  or the circle with the diagonal line through it or other international languages whose word for warning  is placed in hologrphic red and become visible as one moves the package. Similar to those holographic prints in / on checks except use the older 1980s versions as those older  / first generation  holographic styles are cheaper thus not rise the price of the Nestle product. There are several companies which do the cheaper holographic prints and would be happy to get more business since they lost business to the more modern holographic prints used on checks, credit cards and other official material which needs anti-theft measures.
 If this idea is used no need to worry how much i charge for an idea ( have a similar idea copyrighted ) as i post my ideas for all to use and only ask that if a profit is made from ideas i post that a respectable amount of the profit be used to help children in need in  non sectarian method
Thank you to the family who took their time to share what occurred where others might " sweep it under the rug " , and fox 5 for bring the subject to the public eye.
 ,peace