Finding an Inexpensive Dispenser for Nacho Cheese?

Our organization runs a food stand once a year as a fundraiser at a Rough Truck event. A big seller is nachos and cheese. Does anyone have any ideas on how to keep the cheese hot and how we can "pump" it onto the nachos. Using a spoon is so messy. We borrowed an extra dispenser from a local restaurant, but they no longer have one we can use. We checked prices on a regular dispenser, but they are too expensive for us to invest money in to only use once a year. Any suggestions?

By Brenda Wilson