What liquor would you put in this Halloween punch?

We’re having a Halloween party this upcoming Saturday, and among the other food and beverages we thought punch would be a good idea. The classic Halloween punch with the orange soda and rainbow sherbet (you know, the one that looks gross.. but has a flavor that most people like.) I can’t find any non-virgin recipes for this punch, and I’m not much of a drinker myself, so I have no idea what kind of liquor to use.
We have another drink that uses vodka, so I don’t want to use vodka in the punch.

Any other ideas?
Even another gross looking, good tasting, but simple to make punch recipe would be cool.