These items were all created by a wizard in my game who is insane. He also has a short attention span and left many items unfinished.

Ring of Left-Handed Invisibility - A Ring of Invisibility. It only hides you if your left side is facing someone, and it only works on your left hand.

Right Wing of Flying - A cloak that turns into a single bat wing that lets the wearer fly, but only in a tight circle. The user can fly up to a maximum height of 12 feet. Activates with a command word.

Gauntlets of Halfling Power - Gives the wearer the strength of a halfling.

Clumsy Animated Shield - An animated shield that hovers to protect you, but gives you Disadvantage on attack rolls because it's always getting in the way.

Cloak of the Owl Bear - This cloak turns into an owl bear when thrown on the ground. The owl bear is not under the user's control and will attack anything it can until defeated. It turns back into a cloak when the owl bear reaches 0 hit points. 1 use/day. No experience is gained from killing the owl bear.