0
Blue party hat=489.4
White party hat=407.5m
Red party hat=368.6m
Yellow party hat=341.7m
Purple party hat=327.8m
Green party hat=331.4m
On 08 April 2010
a party hat has i edge which is the top
The most common shape for a party hat is a cone.
Nope, never a black party hat.
You can only get the propeller hat as a free item at a party, the April Fool's party.