Salvin Confetti Blower.  Initial blast when high power fan kicks on and user pours confetti in for as long as they want it in the air.  These were used for WINS by the Philadelphia 76'ers for a season (and got little use) and 4 of these filled the arena in 10 seconds going up 50' or more.  Salvin is still in business and can assist with any further info.  More than $5000ea new including the case.  This is an AMAZING deal.  Everything that came back from the rental is with the units, we do not know 100% if every single part is there but all the big items are.  Price is for 1 unit.