I have a son in law to buy for that is a budding young prepper but already had the property appropriate for his purpose. When I bought the family a 72 hour emergency food supply and 5 gallon water container for Christmas one year, he felt it appropriate to share that he and my daughter we also on the same page. We have our "Christmas" on January 8 this year and daughter mentioned "prepper food, tools or supplies" for his with list. My limit per kid is $75. Any suggestions? They have a home, land, fireplace and some food preps. I was thinking light sources or more water collection/storage. Any ideas?