About $12
http://www.amazon.com/Huntington-Brass-16-700cp-Showerhead-Control/dp/B0025VWDGQ/ref=sr_1_154?s=kitchen-bath&ie=UTF8&qid=1411249377&sr=1-154
http://www.amazon.com/Danco-89171-Shut-Off-Shower-Chrome/dp/B000JFNPJE/ref=pd_sim_hi_21?ie=UTF8&refRID=1WX2X8WW9K6XXX095A0M
