And belts with metal buckles (an effective weapon if you know how to use it). And socks for that matter...
As far as belts with metal buckles go, I knew a good martial artist who gave a review of a street fight involving that weapon.
What caught his eye was that the typical technique involved swinging two feet or more of belt length for intermediate range use, but in this case, the user wrapped his hand, leaving about a foot of belt length, and used it much like nunchaku.
And, he noted, used it very effectively, leaving his opponent’s face a bloody mess.