WORD SPIRAL

Starting from 1, fill in the grid clockwise with four-letter words. The last letter of each word becomes the first letter of the next to reveal a drinking vessel.

1. Watch face 2. Luxuriant 3. German man 4. Impolite 5. Resound

6. Kiln for drying hops 7. Camper's shelter 8. Rotate

9. Notch

10. Flying toy 11. Public school 12. Bird's home 13. Therefore 14. Injure with a knife 15. Group of countries 16. Rigid toothed device