It doesn't have to be that way.
Years ago I invented a game called "Rock Golf." It is played in high alpine basins with...you guessed it...rocks!
What you do is: each player searches for a skull sized rock - each player then takes a belt out of the bottle - the group then decides on the par and the target for the first "hole" (which is a usually large boulder that your "skull" must end on top of) - each player takes a belt from the bottle - play commences.
A foul line is drawn in the dirt at each tee and players can hurl their skull in any manner they chose but cannot cross the foul line - a belt is then taken from the bottle.
This process is repeated around the basin or meadow until people start hurling their skulls at each other - a belt is then taken from the bottle and play ends.
Totally free! The bottle is usually donated.