1Melt butter and marshmallows in a large heavy pan over low heat. Stir often.
2Put popcorn into large container. Pour marshmallow mixture over top. Stir to mix well. Add peanuts and candy. Mix together.
3Pack mixture into greased 10 inch tube pan or 12 cup bundt pan. Let cake set until cool, and turn out onto plate to serve. Cut into wedges for all different size kids.