I wonder if, if you don't wish to be Christian, wearing a baphomet would do the job. Place a few point-down pentagrams around the place, get a Ouija board out, and tell whoever witless that next shows up if they would like to dedicate their souls to Father Satan with you. Having a few black candles set up, along with a burning bowl, should do the trick nicely.
And around Christmas time, having the Christmas tree decked to the hilt is a good start. Go out and put a Santa on the roof, rig up as many C9 bulbs in red and green (LEDs are best because they are more reliable, safer, more energy efficient, and you can run more of them off a circuit), decorate your bushes and trees, and have a few inflatables on your front lawn along with the biggest wreath you can find. You may also outline the windows with more LED lights (red and green alternating are best), and put a huge wreath on the wall. When the witlesses show up to give you littera-trash, pull out some Christmas music and invite them in for a good listen while you turn on the lights on your Christmas tree.