Heavier bags for lower body based exercises and lighter bags for
upper body and core work. A circuit may appear in the following manner:

A1. Shoulder and Squat

A2. Push Press

A3. RDL+Row

A4. Shoulder Get-ups

You
can either implement repetition schemes or time intervals for such a
circuit. People can work in partners or by themselves. Such a program
like the one above would allow you to give a great training session to
eight people. Of course you can implement other activities into a
circuit as well. Here is a different example:

A1. Sandbag Squat Press

A2. Jump Rope

A3. Push-ups

A4. Sandbag Carry

A5. Bodyweight Rows

Again,
you can modify repetition schemes in many different formats. In this
specific example you only need two bags and can train ten people with
great variety and function within one training session.