Mace Gun. It's not a toy. It works very well. It comes with a water cartridge so you can try it. My wife has the pink one. We tried on a windy day and it works. I can speak for the strength of the OC because we didn't use the real one on me. But it sprays or streams is a better word, to 20 feet. Looks like a little M 79. It would be cool to pop 40 mike mike at thugs, but that's definitely illegal. No matter it is an effective mace gun and it has a safety.
It cost less than 100 bucks. It's probably legal in New York.