I recently started Flipping dumbbells, I've been using kettlebells, Thor hammer and Machetes, why not dumbbells. I must say, it's a brutal endeavor. Stay safe, use hardstyle kettlebell form and principles and get Flipping strong. Shot loadable Thor Hammers, Sledgehammers and Machete and Smash Targets you can get here.
https://strongergrip.com/