As a DM I have had to deal with that one person that wanted to keep any and all weapons and armor that the party found for themselve. I came up with an interesting way of dealing with that person by way of a cursed item. I will discribe it below. I wanted to see how everyone else deals with those pesty equipment hogs.
Circlet of Canine Senses
This simple circlet is made of iron and has the head of a dog etched into the center with 2 rubies on either side. This circlet first came into existence when the ruler of Uruz commissioned a Gnome Wizard to create an item to help the city guards protect the city from the Orc and Goblin tribes that wanted the city and mines for themselves. The Gnome got the inspiration for the circlet from his loyal dog, and decided that it would be better if the guards could sense the intruders before they got to close to the city.
When worn the circlet gives the wear a +6 to all sense checks, Search, Spot, Listen as well as the scent ability.
Unknown to the Ruler of Uruz, the Gnome had a rather odd sense of humor. If worn for more than 6 hours, the circlets true powers come to the surface. The first thing that happened is the wearer goes color blind and can only see in black and white. Then the wearer will start to pick up over dog like habits such as chasing after sticks and balls when thrown, and burring bones, even trying to scratch behind there ears with there feet. The wearer will even believe that their behavior is normal and won’t think anything of it. Lastly the wearer loss the ability to speak normal language but instead will be able to speak with any canine.
Once the 6 hours have passed and the additional affects start to take affect the only way to remove the circlet is with a remove curse spell. The spell will only allow the circlet to be removed, the same thing will happen if the circlet is worn for another 6 hours.