dungeonmasterShu

I'm stumped too. Cannot find anything
Just off the bat, I would have said a stone, something like Picture Jasper or an Agate, however, if it rattles, it's unlikely a stone.

Could you add a photograph of the right side (of the last / 4th photo), I'm interested to see that dark patch and what seems to be a small dimple and a tiny pimple.

I agree with SukanyaDatta, same if not similar.

i think this is the correct image, the bird is a mere blur.

it's one of the flower crab spiders ("Misumena sp."), they can (to a limited degree) change colour in much the same way a chameleon does, although the change takes days rather than seconds. i have seen these (South African one's) in a veriety of colours from yellows to whites to purples/pinks and in-betweens.
http://en.wikipedia.org/wiki/Flower_crab...

CorduneanuVlad.... your suggestion is a European and North American species, this spotting is a South African species, which doesn't match your suggestion's description (or distribution) sufficiently.

Thank You again!

Thanx Johan.

bayucca: Thanx.

Not perhaps an "Ablepharus sp."?

i lifted it with a pair of tweezers and dropped it onto my palm. no need for it to sting what it's standing on.