Vinegar and baking soda? That'll make a mess and pop the cap off.
Ammonium nitrate and water? well, that's a little more ambitious.
And, while we're at it, LET'S PLAY THE RACE CARD: “The policies are particularly pernicious for African Americans and other young people of color as research shows these groups are disproportionately targeted by zero-tolerance policies and subject to harsher treatment once involved in the criminal justice system.”
That's endothermic.