If you can scrounge a standard yard sale sign, the kind on a wooden stake, you'll be ahead. If not, they are easily made. You'll need two USP lumber connectors which you can find in the lumber section at Home Depot or Lowe's or the hardware store of your choice. Get the long ones since they have to bend all the way around your torso and over your shoulder. This depends on your size - bolt two together if needed. Get two L-brackets with four holes total. (See pictures) You'll need four small nuts and bolts to tie the whole contraction together and four nails or pins to attach the actual sign to the rig. More on that in the next step. as far as tools go, you won't need much. A drill to put some holes in the lumber connectors and a hacksaw to takes the tips off your nails. You'll need a screwdriver and pliers to tighten the nuts and bolts.