dungeons-and-dryads:

Can’t use metal shields as a Druid? Creative alternatives, time!

Water Druid? A large, dome shaped coral, a huge seashell, a massive octopus beak, or a turtle shell

Underdark, Swamp, or Night? A giant mushroom cap, a giant bird’s beak, a slab of slate

Forest or Plains? A giant acorn cap or nut shell, or a tortoise shell

Desert? A branch of dead wood as an arm shield for parrying, or a plate from a giant scorpion’s chitin

Still not enough? How about a dragon’s belly scale or pieces from bones or fossils, like a half of a ribcage?
A carved out giant tooth? A lid of a woven basket? A piece of a giant eggshell? What about a wheel broken off of a cart?

You don’t just need to take a wooden shield. Get creative. Use a dinosaur shoulder blade!