I don't know if these are posted in rank order or not, but they are the most common things kids tend to stick up their noses.

1. Crayons
2. Beads
3. French fries
4. Fingers
5. Marbles
6. Spaghetti
7. Tissue
8. Cheerios
9. Small toys
10. Beans and peas

Babyzone has more information, such as what you should do in each case. Link -via Bits and Pieces