When we were kids we used to make our own.
What you need...
1. wooden clothes peg (not the type with the spring).
2. 2 shoe laces or string.
3. A tounge from an old shoe or some small bit of leather for a pouch.
4. 1 piece of gut - 1ft square type. (this is the strongest gut we could get at the time 70's. and looking at catapults today I still think our old style gut was superiour).
GUT.
First off it was a trip to the local sports shop for a 1ft length of square gut? dont know if this is what its called or if you can still get it?
HANDLE.
Get a wooden clothes peg or a piece of wood and carve a ball type top on it. The ball on the top of the wood/peg stops the shoe lace or string loop from slipping off.
AMMO POUCH
Next get an old shoe and strip out the tounge - (to be used for the ammo pouch). You'll need a pice about 1in W X 3in L. Once you have your strip of leather punch 2 holes in it, one at either end.
2 BITS of LACE - STRING.
1. Tie the lace/string to fourm a circle. Make a loop fron the circle and put loop over peg top. Your handle is now ready.
2. Tie each end of you other pice of lace/string in the holes in your tounge/strip of leather. Once done you should have a circle of lace/string & leather.
GUT - HANDLE - POUCH.
Make a loop in the circle of lace/string you have coming from your handle and slip gut into it and pull tight. Do the same with the with the circle of lace/string that you have on your pouch .
You should now have a comple catapult or as we called them up in Scotland when we were kids - A Gutty.
Handle - Lace/String - Gut - Lace/String - Pouch.
Simple.
For those that cant follow this explenation? I'll try and do some kind of diagram and post it up.
Thanks
Tom