That is what is was called when I was in HS. You bring a bar of soap to get into the game. The soap is used in the locker room throughout the season.
In Ohio the first two scrimmages will involve 3 or 4 schools. You will run 10-12 plays on O and rotate teams. They will also have a segment that will just be goal line. Also will have segments for special teams. The last scrimmage is a real game.
I wish college football would have where they would bring in 3 or 4 teams and run a scrimmage with certain amount of plays against other schools. Maybe bring in 2 FCS schools and a D-2 schools. Have Huskers scrimmage the two FCS schools (or lower tier FBS) and the FCS school can run some series against the D-2 school. Huskers could also run scout team guys against D-2 school. I think it would be cool to do, but put it in the category of will never happen.