A reminder if you choose a fountain, you cannot add sherbert, ice cream, or juice with pulp, because it will clog the machine and stop running. 

For those ingredients use a punch bowl.

Want a cold punch?  Mix your punch a day ahead and place in the freezer.Take it out so it can defrost and be slushy then you put it in the fountain

with some that has thawed competely. Or freeze the punch into ice cubes and place those in the fountain with the punch.