CWE
Ahhh the home chemist lol, here is how swim has done it and it works no need to worry at all. Like Euko said though unless it is absolutely needed why do it? and we know why you want a buzz and not just pain control..swim has been there done that. here is how to as for what swim told me
First take the desired amount say you have lortab 10/500 take 5 of them crush up however...swim uses bottom of shot glass to crush the rolls shot glass over crushed pills to powder them. take the powder and put it in shot glass. with 5 of the 10/500 swim would use 20 to 25 cc's of water hot from tap. pending how fast you want it. you can (after stiring vigorusly) A) put shot glass in freezer for about 2 to 3 min dont let it freeze! or B) take another short wide glass like a rocks glass or one of the Crown Royal Christmas glass's lol...put shot glass in center the fill with crushed ice and water up to 3/4 level of shot glass and stir water/ice carefully!!! for a min or so..then get another shot glass or such item and take a tea bag, coffee filter, cheese cloth etc...get that item wet and ring out a bit. cover top of empty glass pushing in the middle of filter and glass to create a crater to hold solution. pour in carefully as to not over fill or spill. let sit for couple min...now you can let sit till gravity takes its course or if in hurry let sit few minutes then carefully grap filter at edges as to create a bag for solution and then squeeze gently to get all water out....the sludge left is the EVIL APAP

then with the water left cheers!! or put in your fav device and plug either way about 15 min later you will be in bliss!! if you have any questions let me know I will ask swim and reply back....and dont worry swim has done this a lot of times!!! those damn 5/500's are hell!!!! lol Good Luck