Hi Mark,
There is a beautiful Prawn lure made by Yozuri and a plastic design by DOA, these are the only ones I know of?
But..
Live Prawn is just about the finest Bass bait going.
I have caught more on this bait than all the alternatives combined.
The secret lies in hooking through the right part of the body so the prawn can still make the 'click' when it jumps, because the click is like a dinner gong to a hunting Bass, especially if the water is stirred up.
The Americans (bless 'em) use a special float that makes a noise that imitates the click of a panicked Prawn, this clever float has a couple of brass beads on the stem underneath which, when the float is moved, click together
Best thing about using live Prawns is you can eat the left-overs when you get home or (uncooked) on the bank....yes really, they taste really sweet and are full of flavour, try and see for yourself.
.