Minecraft Dungeons Cape for Java – Minecraft Feedback
Migration Cape Minecraft Mob Skin
BDcraft Figs: Custom Capes - BDcraft.net Community
I made an Elytra texture for the Pan Cape : r/Minecraft
A few Elytra textures for capes... but don't fret! I've researched the hurdles to make the textures customizable as skins, and it will be added eventually (unknown ETA) : r/Minecraft