Smoke bombs for gender reveal

Heather • 2 angel 👼🏽👼🏽 🌈 Mother to daughter born May 30 ❤️❤️

I am finding out the gender of my baby via nipt test. Once I find out I want to surprise my boyfriend. I want to get the smoke bombs. Anyone know a legit place to get them? Preferably a store I can go into.