Bat wing/armored bat wing

I think bats should have a rare chance to drop bat wings when killed. Cooking it would get you a below average food source. You could also craft it with a netherite ingot to get an armored wing, something that could be used in brewing to craft a potion that lets you fly a restricted distance above ground for a short period. You could also use it to make Armored elytra, that could have more durability, give a bit of protection, and act as a wraparound shield for below the head if you crouch