things that are potentially dangerous. Laser pointers, bright flashlights, tasers, etc
Lithium-Ion (18650/16340/26650) batteries can explode when overcharged:gun:
"1mw" red ebay laser (definitely over 15mW)
1W (445nm) burning blue ebay laser
"10 mile range" (532nm) 301 ebay laser (not received yet)