I have few suggestions for your pack!
1. Credit cards
2. Transport tickets
3. Different shapes of pillows + Royal Pillows
4. I don't know how they called, but cubes that kids play with
5. Toilet paper roll, pile of them
6. PC, Laptop
7. Light Sabers
8. Wind
9. Cables
10. Suitcase
11. Tablet
I am gonna edit this list sometimes