Nickel-plated-solid-brass knob. I’ve always enjoyed having a hanging calendar in my kitchen with all the dogs’ treatment dates marked out. And since the kitchen is kind of retro (actually it honors the retro look without being a total slave to it) and completely brand new, the last thing I wanted to do was to use a thumbtack which could badly damage the wall over a period of time. So my solution was to purchase a drawer knob in the same finish as the rest of the kitchen hardware. Satin/brushed finish nickel plated solid brass. I went to Elliott’s Hardware, picked out the knob, then trudged over to the screw department and asked for a double threaded screw that could replace the knob’s screw, and the other end of this screw could be used with a plastic sleeve drywall anchor. Et voilà! I do believe this is a brilliant solution. I wonder if Martha Stewart has already thought of this trick. Probably.