head pins, a wire twisting tool and a wire cutting tool. Make sure that the ear wires and the head pins are made from a reliable material, such as sterling silver. Don't be cheap with such parts of the earrings: they will not be quality products if the material breaks only because you were too mean to invest a bit more in more reliable materials.
You also need to be careful with pushing the beads onto the head pin.
You will place onto the head pin as many beads you consider necessary
for the final length of the earrings. When you are done with the jewelry beads,
you will use the wire cutting tool in order to cut whatever length of
wire is in excess. Be careful: the same as it happens with any other
kind of jewelry making, earring crafting requires delicate actions. Make
sure that there is some wire left: this part will have to be curled
into a small circle with the wire twisting tool.