You can easely modify a ping-pong bat.
In electronics shops you'll find crocodile clamps (cover them with shrink-tube for lower pain levels or leave 'pure' for hardcore)
Plain white stearine candles are pretty cheap and have a moderate melting point.
Press a load of thumbnails through a carton plate, clean 'm good with sterilon (or an other desinfectant) and it's ideal for breast torture. Just lay it on the table and let your girl lean with her boobies on it.
If you can get your hands on some injection needles, you can do the same for the cunt/cock&ball area. Take a strip of carton and suspend that with strings at crotch height. Let your sub stand over it.
I've made my own cat'o nine tails with leather laces. This thing is for real, no noise but a vicious bite, without breaking skin.
Tiger balsem, tabasco sause, ice cubes, etcetera....

Plenty ideas.