Here are a couple that I've thought of:
1. How Himmel Street means 'heaven' in English, but was completely destroyed by the bombing.
2. Rudy's father refused to send him to the school for Nazi training (to save him from entering the war), but ended up leading to his death because Rudy died during the air raid that destroyed Himmel Street.
Rudy always wants Liesel to kiss him... and she finally does, but not till he is dead
Death narrates a story about survival.
Hans Hubermann was borded to Stuttgart again.
Liesel surving the bombs in the basement, and the basement was determined "not deep enough" to be a bomb shelter