Tim Ferriss presents 'the king of exercises': kettlebell swing.
You can also swing with one hand, switching hands at the top or bottom position.
I'd recommend you start with a very light weight, at least until you get your technique perfected. There's no need to exercise with extremely heavy weights at all.
Even if you don't have any kettlebells available right now, you can try to swing with some suitable object like a cast iron frying pan, a small kid, or whatever you can think of. What's important is to learn the correct swinging motion, what you swing with is not so important.
Dumbbell Swings, Gripper Plate Swings, Kettlebell Swings from Josh Hillis on Vimeo.
You can do "Kettlebell" swings with anything you can get your hands on!
I've been doing various kettlebell exercises daily lately. My muscles are a bit sore, but not in a bad way. I'm definitely getting stronger and its fun too!