Melitta Java Perk coffee maker thermosat model MEP 10C

SOURCE: The bulb on top of my Melitta Java perk Model

Go to the hardware store and buy a porcelain or stainless steel cabinet knob that will fit over the hole in the percolator top. Discard the screw that comes with the knob and replace it with a shorter (maybe 3/8") stainless steel version (shorter because the top of the percolator is a lot thinner than a cabinet). Then, buy a couple of neoprene washers and a stainless steel fender washer. Prepare the percolator top by using a hammer and a small piece of wood or something to flatten out the metal around where the old percolator top used to fit. Now you can start putting things together--slip the fender washer over the screw, then one of the neoprene washers and put it through the hole in the percolator top from the inside. Then slip the other neoprene washer over the protruding screw and screw the cabinet knob down, sandwiching the whole assembly nice and tight. Finally, tape a dollar to the old plastic percolator top and throw it away so you can say you've thrown away something.