I will pretend you said "meth" or "heroin" and not "coke" .. honestly, you need to rail a fat gagger to evne get a noticible sensation with coke, so a "bump" wont cut it... still, I will cover some ways to do this and even unlease my newest creation - PhreeX's PRE-LOADED Powder Party Tube .. if you want to bump then just grab a bullet or even better get one of those metal 'Snuff Rockets' (NOTE: Despite what it says on their website, the 'Snuff Rocket' is FOR POWDERED DRUGS ONLY, it is NOT to be used with any type of 'snuff' or tobacco but ILLICIT DRUGS ONLY!) This will make short work of it if you're happy doing "a bump", but with coke "a bump" isn't even going to make you numb, it certinly wont suffice in getting you high..
So you have a few options... the nasal spray works GREAT, I mean, it really does - the only problem is getting a bottle of nasal spray into the club - I have yet to come across a club that allows ANY SUCH THING.. same deal with raves, in fact it might get you busted if someone were to catch the smell of coke.. if you wish to go this route then search for "cocaine nasal spray" - we discussed it a lot and several "recipes" were posted that had doses as well as just what to toss in there so it absorbs the best!
Next option is to simply find a nice place and do up a good amount, there are a few ways to do this.. I went to a Home Depot store and in the middle of their locks isle they have a key cutting station, well, they have these keys blanks for every lock, and if you look some of the blanks are like gutters, I mean, you can find some of these that can shovel out a huge amount of power, well, because I had some shit happen at Home Depot I DEMAND that you just steal these! So, take yer key and go home.. before you go to the club, figue out how many "scoops" it takes to get you a decent amount .. then once in your dark cornor bust out your bag of coke, take your massive shovel key and spoon out a pre-determined amount - you can use any flat surface to work off of, then just snort it with a bill - dont worry about "lines", you jsut just do "the pile" ..
When I used to go to raves, my first girlfriend and myself had a nifty way of just doing lines off the floor - I mean, chopping and railing a nice fat rail off the floor, just as you would at home... it works like this - go find an area where you can be facing AWAY from public view, the best is facing toward a wall.. it helps to actually have a 3rd person to simply spot you... you lay on your belly and take your arms up as though you're in the position where you would, say, rest your head in your arms.. you have your massager then straddle you - just as though you are getting a massage, I mean, how common is this? You can't safely walk within 10 feet of the wall at any rave or you will trip over people doing exactly this, trust me, you're not going to stand out in the least.. now if you have a 3rd person they can sit as though they are talking to your or the person sitting on you - they simply face away from the wall so they can watch if anyone is approaching, and if you need to cover everything you can fold your arms around the pile of shit and put yer head down on it - then you're not using drugs, yer just getting a massage and you have your head down (if it's an emergency you could blow the powder everywhere) ..
Another nifty little invention I hold the patent too is PhreeX's PRE-LOADED Powdered Party Tubes .. I find that straws work best for this, in fact the ALL AROUND BEST are those 7-11 Slurpie straws that are about twice the diameter of regular straws and they also have a scoop on one end - the reason for the latter will become evident later .. ok, the first thing to do is seal off one end of the straw, to do this simply fold over the end then tape it in place with a piece of scotch tape, an alternative method is to 'plug' one end - I had success using hot glue (as in a hot glue gun) .. if you're using the Slurpie straw make sure you close the end WITHOUT the scoop on it..
Alright, one end sealed, time to load it up... it's really simple kids, you just chop out a nice sized line, that line is then transfered to the straw - this is where the 'scoop' on the Slurpie straws comes in handy - you can basically use it as a funnel and load the straw in seconds! If you're using a regular straw then you can simply roll a piece of paper into a funnel, shit, they even make little "kitchen funnels" and some of them are the perfect size for a straw, in fact I think those are toward the wider end of the sizes when it comes to these mini-funnels.. once you have the straw loaded you must clean it up, so hold it to the light and see exactly how much of the straw is used - I don't recomedn that you tap it to "pack" the powder in - enough of that happends on it's own, ou also don't want it to be packed because you gotta sbnort it all out! Give yourself a little extra room - you want it to be a decent length and you will also need to seal it which consists of folding that end over - take all this into account when cutting it, because the powder alone will only ocupy a small amount of space! To seal that end your only real option is to fold it over and tape it - if you have a razor then you could go forward and 'plug' both ends with hot glue or something .. stuff a nights worth of these into your sock and it's off for a night of fun.. when ready for one just pull it out, pop open one end, stick it up to yer nose and snort until it's dry - you may have to throw yer head back .. I also prefer the clear straws as you can check to ensure you used all of it - then go ahead and toss the straw on the flood and continue, let the staff find it and think "damnit, we tried to give these kids a drug free enviornment but we seem to fail, we thought that by not selling alcohol at our rave party we would be giving the youth a safe haven, free of the evils they face in their outside world, why wanted to create a uptoia, a DINOTOPIA!" ..
Thats about it! Good luck!