Can you make a bomb out of nail polish?

The hard coat of nail polish is due to its nitrocellulose content, otherwise known as guncotton. It is extremely flammable/explosive. The solvent used in liquid nail polish is quite flammable as well. So yeah, you could probably devise some sort of explosive out of nail polish, but I wouldn't recommend it - there are dozens of ways to make improvised explosives that are easier, cheaper and more effective.