Can anyone give some ideas on these 2 broken lights?

“All dented cells or batteries with dented cells should
be disposed, regardless of electrolyte leakage.
Denting of sides or ends increases the likelihood of
developing an internal short circuit at a later time.”
http://www.whoi.edu/cms/files/LithiumBatterySafetyGuideSG10_26006.pdf

Don’t leave them where a fire or chemical leak would affect your family.
Yeah, it’s not all that likely to happen.

Bigger risk with cheap batteries: Disassembly of cheap 18650 battery