Piece of wood, paint, and wood shop tools(hammer, paintbrush, screws, wire, sand paper or sander, and if wanted gloss.
Take a piece of wood and sand its edges and sides so there are no sharp points. Paint a word on it like (welcome,go away,etc.) let paint dry, take a screw or nail and screw it to the top, wrap rope or wire around the screw and hang on wall ( if u want to gloss the sign to make it smooth.sell at store, or just enjoy at home.)
From Hunter, age 13, Minnesota