Materials needed: A couple of bookbags, and books
Have the youth walk around with an empty bookbag on their back; ask them to add a book for every sin they have committed. (lies, lust, sex, not praying, disobeying parents, not following the Laws of the Lord, etc…) The more books that are added, the harder it is to walk around.
Showing it gets harder and harder as we continue to walk around with our sins burdening us. Just let them go, confess them to God and let Him handle them.