I like this particular design because it gives the customer that multiple-perced look if they only have one hole in their ear (below, top), or it can be worn as an accent in a second hole (below, bottom).
You can obviously make this design longer, or embellish it with kinks or curls -- whatever your imagination can think of! I might point out that the reason for the "double-loop" at the bottom of the design is that it takes some of the pressure off when the customer repeatedly "pulls" on the back wire to put the ear pin on.
I've found that if you just bend the wire directly over and up, it may eventually break.