Here's a fun project that allows you to reuse potpourri that you've grown tired of in its loose form.
Parental supervision is recommended.
This project is rated VERY EASY to do. How To Make It Separate your potpourri by size. For example, I recently made a wreath from sandalwood and rose potpourri, and separated the rosebuds from the sandalwood. Doing small areas at a time, coat a portion of the foam with glue and then with the smaller bits of potpourri. Once the entire ball is covered with the small bits, arrange the larger pieces decoratively.