Our church is very active in the Operation Christmas Child program. This meaningful charity gives a shoebox of presents to individual children around the world who would otherwise receive no Christmas gifts.
I was asked to make something for the 2-4 year olds, an especially challenging age group. Everything in the box must be safe for little ones who regularly put things like buttons in their mouths.
Another consideration is that 2 year olds are still babies while the 4 year olds are likely marching full stride into the big kid category. The box contents must be appropriate for all the children in this age range.