It could be so:
1-Place: Gold Tower/Building + Very Big Poster signed from Committee
2-Place: silver Tower/Building + Small Poster even signed
3-Place: Cuprum Tower/Building + a photo tallest building signed from Dylan
4-Place: Wood Tower/Building yellow painted or A medal
5-Place: wood Tower/Building silver painted or a Medal
6-Place: wood Tower/Bldg not painted. or A medal
7-Place: a kitsch watch with Empire States tower as pointer
8-Place: A dish of Free Statue stamped
9-Place: a pencil
10-Place: only a cap of Big Apple, the most densed city in world of bldgs.
