The first idea is about the "dynamite remote" This device should be able to control a redstone signal. i.e. shutting down a force field, Opening some iron doors or even setting off a deadly trap to kill a thief remotely. A machice upgrade or a cover for a machine(gregtech). It should could have two settings single pulse and flip-flop.
next is about the RE-battery, lead acid batterys have fatal flaws they can only handle low voltages(in real life, rare to see otherwise) and are slow to recharge.
RE-batterys can handle any voltage due to redstone haveing almost magical energy absorbing proporties(in real life, it would change how we power electronics). Why do you think energy crystals have redstone in them huh?. proposed tiers "Lead acid" --> "redstone and lithium" --> "energy crystal" --> "lapotron"
In another suggestion thread I read about someone wanting to get clay from stone. ha no. but how about from washing dirt in the wash plant?
Remmeber those magical properties of redstone, ever heard of a betavolatic battey? by combining redstone with uranium in a special battery with tier based casings you can make this space age power source, you can get nearly free power. the only problem is the amount of power you can extract from it is so small but the voltage is extreme. maybe the IC2 engineers will need to look into this awsome power source.
next are some ideas a little further from IC2, some rare materials "tungsten" and "platinum" are very hard to melt (real life). how about a "plasma arc furnace" for really hot stuff and an "electric arc furnace" for processing bauxite into aluminum. seriously you've never watched "How its made" :evil:
This goes towards "gregtech" how about instead of a "thermal boiler" you make a nuclear reactor that makes steam. dont get me wrong a thermal boiler is a fair source for tungsten with out going to the end but, having tons of EU's can be much better. machine casing blocks for it could be made of stainless steel.
How about a blast furnace that makes grey iron, Then you have to convert it into steel by reacting it with air cells. Could also be used to melt bronze. then use cooled dies to cast it into usefull shapes.
ya I have melted aluminum, brass and cast iron in my backyard(real life) I got a serious clue of what it takes.