Where can i find Lots of JawBones in deserT?

I need some Jawbones, any one can direct me to places that have lots of sand giants in the desert so i can get some of their Jaws??

I've never seen sand giants drop jawbones or heard of any items just called "JawBones". If you're talking about duneburrower jaws, you can get them by doing the first part of elonas reach over and over. If you're just looking for sand giants and these er... jawbones, then there should be a hefty amount to the east of destinies gorge. Once you go outside go north a bit and keep heading easy until the path curves south. Follow the sand ledge down and you should see large mobs of them.

There are a lot of sand giants in Arid Sea (south of the Augury Rock) espciallly around the centre moutains (the place where you can finish your 15 attribute quest).