A few years back I was talking with a friend about her husband's baseball cards that he kept in an old cigar box. It reminded me again of my childhood shoebox, and I decided that I needed to give each of my grandchildren a special box to store their personal treasures. So, I've made each a box with their name and some design that is personal to them (and hope to continue as we have more grandbabies). For example, the oldest loves animals, the second loves monster trucks, the third loves music, etc.
When we visit, I love to sneak off to their bedrooms and take a peek to see what they've hidden inside. Shhhh! don't tell! : )