If you are unfamiliar with busy or quiet boxes, they are quite simple and can be implemented in a number of ways. A box can be created for each day of the week (or just the weekdays), bags can be created for each separate activity so you can pick and choose when to share certain activities, or bags can be created that can be taken out to restaurants and shopping trips.
Crazy Straw Threading
The crazy straws were purchased at a dollar store, while the felt was left over from previous projects.
The goal of this quiet activity is to thread the felt pieces along the straw to promote the development of fine motor skills.