This is a simple little craft using bottles, glue & baker’s twine (about 50 yards per bottle)
Paint a bit of glue on a clean bottle and wind green baker’s twine around and around and around until you can’t go around any more
I mostly did mine in one layer, pushing the twine together to eliminate gaps. I added a bit of felt for a touch of whimsy and to make it st. paddy’s day-ish.