How do I convert a 220 to a 120 for outdoors?

Ok, i am trying my hand as a concession vendor. I dont have a trailer but a tent. I have multiple 120 v machines,which is fine, I can deal with that.My problem is my funnel cake fryer has a 220 plug which cause a huge problem!! i was told it would convert down but how? and how costley is it? Is there a "recommended" elctrical way to hook this up at each event?FYI,,i have a 120 cotton candy machine,sno cone machine,nacho cheese holder and a freezer,all 120,,,then i have this funnel cake fryer thats 220!! WHAT DO I DO???HELP!!!