I don't have a camera right now. Even if I have, it's quite difficult to take it's picture. So, I immediately drew it. The actual way of holding is to hold it diagonally. This is just to give you the idea how it is held.

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Although wierd, it packs a punch. I removed the balloon band and replaced with a heavy gum rubber band set. It could put .50 lead sinkers completely through soda cans at 4.5 metres. It's very tiring for the shoulder.
You can see the original one in this website, under photo- slingshots- bill herriman, then 'shooting stars'.
http://www.melchiormenzel.de/ I used his dimensions to make one for myself. It's a great design.