We have a shoe adaptor that will fit screw into the 3/8" boss of the Cyclone (details below).
Description:Hot Shoe 3/8"Adaptor
Web link: http://www.rycote.com/products/037302
UK List: £ 15.00 exc. VAT
Our only warning would be moving the camera around too much (with that sort of weight attached to the flash shoe). The flash shoe is notorious for being the weakest part of most cameras - so just a word of warning