Answer: They're fencing weapons.
I gave a lot of leeway on this one; about one third of the answers merely said "they're swords" and may not have known about the fencing part, but I figured this one was close enough.
Which made everyone who answered get it right: DarthFerret, EricBess, Limited, Melkor, Mooseman, mythosx, Oversoul, Ransac, rokapoke, sageridder, TomB, train, and turgy22
Scores:
EricBess: 16
TomB: 15
DarthFerret: 14
Oversoul: 14
sageridder: 14
train: 14
Ransac: 13
rokapoke: 13
Melkor: 12
Mooseman: 11
turgy22: 10
Limited: 8
mythosx: 7
Lythand: 6
cardboardbox: 0