You’ve probably got all the tools you’ll need around the house to make these markers. A 2-gallon bucket and a wooden spoon are all you need for mixing the mortar. We used a 4- x 8- x 2-in. disposable plastic container as a form, but you could also try a cut-off milk carton or a bread pan. You should also round up a pair of pliers, wire cutters and a utility knife for working with the wire.