I thought I was so clever until I saw the pics posted in this thread with the CO2 tank. For the RTI race that was blown away last fall I stuffed two surplus airline PFD's into a bag. Fresh CO2 cartridges are in both PFD's. In the event of a pitchpole they will be inflated and hoisted on a dedicated halyard to the top of the mast. If I can keep the mast up (foam inside the mast), I MAY have a chance to recover from the feared pitchpole of my little trimaran but it will also require the use of a drogue (longer story for a later thread). I hope I never have to use it and with the price of CO2 cartridges, I haven't tested it, yet.
The good thing is that I have two extra PFD's on board to use for whatever or whenever they may be needed to be pressed into service.