Grandmothers already have everything they need, have less and less space for stuff as they downsize, and are trying to lose weight, so candy isn’t a great idea.
Since my wife and I are almost 80, we are familiar with the problem.
However, we discovered the internet early and got comfortable using it by 1998.
As we have developed a variety of issues, we learned to explore Amazon to find helpful tools and gadgets that mitigate some of our challenges.
For example, I can’t reach my toes. So, how am I supposed to put on the compression stockings I need to control swelling in my legs?
The right Picker Upper tool extends my reach so I can slide to sock far enough onto my leg that I can reach it and pull it on the rest of the way.
Amazon has lots of choices in the $10 to $40 range. Just search for Grabber/Reacher.
The differences between them are subtle, so a website that reviews the problems each variation is best for could become quite popular.