First, you are going to need the mesh stuff - it is called "Poly Deco Mesh" and is hard to find for me locally (Hobby Lobby carries some in Christmas colors, but it is very limited). I ordered mine online from http://www.mardigrasoutlet.com/. It's around $10 a roll, so it's kind of expensive. I have some of the roll left, but I'm not sure if I have enough to make another wreath - I'm hoping I do. You will also need wire or ribbon to attach the mesh, a wreath form, and any embellishments you wish to add. I found the sparkly Trick or Treat sign at the Dollar Tree, and I made the ghost (more on him later). The wreath form I bought was wire, but in hindsight I think I would have bought a grapevine wreath and spraypainted it black. The mesh doesn't do a very good job of hiding the wreath form, so I had to first wrap my metal form with black tulle. Next, I started adding strips of the mesh. It is very forgiving, so just put it on there how you like it. I tied my pieces on with black tulle, but you could use ribbon or wire. Once I had my mesh on, I just hung the little sign in the middle by tying it underneath the back of the wreath, and then added my little ghost (wiring him on). I made him using a white styrofoam ball (side note - WHY is styrofoam so expensive!?!?!?) and some cheesecloth - I just tied some purple tulle around his neck. I hot glued some buttons on for eyes, and he was done! I won't tell you how long I was messing with him to make him look like an actual ghost, because it's an embarassing amount of time. Suffice it to say - I have issues.
Once he was attached, I was done! I would have liked to have added maybe a few more little embellishments, but with the mesh being so "busy" I didn't want to get too out of control.
If you make a wreath, I would LOVE to see a picture of it!