One of our Crafty Club ladies brought in a bag of what looked to be tree bark, a few weeks ago. It wasn't from a real tree, it is imitation bark. Not sure what it is made of. I took a piece to play with, I could make something with that.
I drilled holes in it and passed shades of green wool through it, securing it at the back, and fraying it at the front.
Then I found some tiny flowers which came in a parcel from a kind reader, I threaded cotton and a bead through the middle of them and passed the needle through more drilled holes and secured them at the back.