Here are my favorite mounting supplies:

http://mpex.com/lumopro-lp633-compac...cold-shoe.html

http://mpex.com/lumopro-lp634-umbrel...l-adapter.html

http://www.flashzebra.com/hotshoes-s...hotshoes.shtml

http://www.flashzebra.com/products/0085/index.shtml

http://www.bhphotovideo.com/c/product/983557-REG/frio_enlfrc2a_universal_locking_cold_shoe.html

http://www.bhphotovideo.com/c/produc..._t_handle.html

http://www.bhphotovideo.com/c/produc...lamp_with.html