The Nasty Clamp is a super strong "A clamp" with a flex-arm attached. The flex-arm is modular and can hold a maximum weight of about 1 pound. When the clamp is used in a under-slung position it will actually hold quite a bit more.
I have a pond in my backyard and I have used the Nasty Clamp to provide additional lighting when photographing frogs. As a matter of fact, I have 2 frogs that attack birds when they stop by to take a bird bath.
Nasty Clamps are made and build by some very Nasty people in Portland, Oregon. For more information about these cool clamps head over to their web site www.nastyclamps.com
OK. You wanted to see the Frog, actually there are two of them. Here is where the frog sits waiting for the next bird to land. I've been unable to photograph a successful attack only misses.
Below you can see that the frog has just made it's move, missing the bird by inches! Look closely, the frog is just behind the cattail and the bird is in flight. I'm going to photograph an actually catch one of these days. It's going to require the patients of a frog to get it.