No idea what Dominican Republic laws are. I’ve been told if you say they’re for private use only you’re OK. If it can be viewed as a weapon, best to check it, but then you risk the authorities somewhere searching your bag and find it missing with no recourse when you land.
I’d not travel with my favorites because no matter where you are if the authorities want to confiscate them, they’ll confiscate them. Arguing about it in a foreign country is probably not a good idea.