Leper
Tom and Musa come upon a leper and learn that the colony of lepers had been bombed and this one person is all that remains. It is a metaphor for the destruction of war leaving nothing but death and disease in the wake of its passing.
The Garden
The final scene takes place in the garden of topiary. It is a metaphor for the Garden of Eden, where the creation of man began with the God breathing life into him. Thus the play ends with the turmoil of the two characters, Musa and the Tiger, being left with no answers.
Sacrifice
Kev cuts off his arm in an attempt to relieve himself of the ghost of the tiger. This is a metaphor that he believes he can rid himself of the horror of war with a physical sacrifice, but the reality is that his sacrifice only further adds to the body count of the war.
Gold
The gold gun and toilet seat that Tom and Kev seek to take with them from Hussein's palace are both metaphors. They are highly valued as they are solid gold and can be sold for enough money to retire. But the metaphor is that this precious metal of high value has been crafted into an instrument of death and a piece of a toilet where urine and feces are disposed. Thus the the question of, "what is the true value of this gold?" is highlighted quite clearly through the metaphor.
Musa and the Tiger
Musa speaks to the Tiger at the end of the play, who believes Musa is God. Musa says that the world is the representation of what God has spoken, which is a metaphor for creation coming by the Word of God, and his inability to come to grips with the horror that has become of it in the hands of mankind.
