well I know we already have many, many threads about suggestions some of which are good some of which are awful (sorry to say) but the idea of this thread is to create a MEGATHREAD containing most suggestions with a short explaining paragraph, the way to get your idea entered here? PM me with the Idea and some background info, or send me a link to your OP (Original Post)
I will add as many suggestions as I can when I get the time, in the meantime feel free to debate the current suggestions here or even the purpose of this thread.
TNT and Plunger - this cannot be used as a weapon efficiently however will take the enemy much to there surprise as you blow through the floor of their 'safe' hiding spot. to avoid misuse of this, you would have to lead out the wire AFTER you had placed the TNT inside of a designated block. (yes inside) for a distance of 10-15 blocks, then set down your plunger which you can detonate the TNT with.
C4 - I know there is already a thread regarding this but I'll add it to here anyway, Basically you would you have your C4 block and your handheld detonator which would take place of the C4 you just planted on/inside the designated block, the trigger would be pressed and there would be a 1-2 second delay before the C4 detonates. this would make a huge noise abandoning the idea of stealth but instilling confusion and fear in it's place.
Pickaxes - (Treading dangerously into the Minecraft area) This would be easier to break blocks with however after a certain number, (let's say 50 or so) the pickaxe would break and you would be left with a broken shaft, this would do no melee damage and be solely for quick entrances to bases with a medium amount of noise.
Drills - would have a set amount of damage to other characters 8-9 LP for every second of contact with the drill, this however would have to be connected to a power source (another suggestion) to power it, and the cable only stretches to a 10 block radius in any direction, meaning if you want to go further you will have to move and reset the power source, essentially a generator which we will talk about later.
(More coming soon! going to sleep now, so PM me or post below if you want something added or just want to talk about the current suggestions.)