Water Wings

These are different than real wings in two important respects. The first is that instead of keeping you in the air, they keep you out of the water. The second is that while real wings make you look like some sort of badass hawk, or like some sort of powerful angel, or something, these make you look like a dork who doesn't know how to swim.

Gives you resistance against water-based attacks and prevents you from drowning, but gives disadvantage on all Charisma rolls