Begin by getting your hands on a wire ring. You can pick them up at a florist, craft suppliers or buy them online. You can also make your own out of a strong gardening wire. Tie one end of the thin florist’s wire around the top and put the wire reel to the side.
Now you need a base material—I’m using moss. It’s natural and looks much better than oasis. Again, you can pick this up at a florist, craft shop or garden centre. Make sausage shapes of moss with your hands and place over the wire ring, following the rounded shape of the wire. Cover the entire ring with moss, ensuring that the moss is quite thick and evenly distributed.