I grew up in an extraordinary home. My parents were not normal and that gave us the freedom to grow up without a lot of restraints. We could play, create, and enjoy life as long as we weren't treading on anyone's turf. They created magical and spontaneous holidays and activities.
One of those were "Just Because Days". My Dad would come home with gifts for everyone to celebrate "Just Because Days". Sometimes the gifts were small and sometimes they were major. When Mom passed away my Dad made sure I got some of the jewelry she had received "Just Because". If you think this is a great idea here are some good choices.