Could I have a friend with clean urine piss in a ziplock bag and I tape that to my thigh ?
Literally just took a UA pre-employment test with a friend's urine. Do not use a ziplock bag. I mean you COULD, but I had him use a regular condom. I tried not to use anything with a ton of spermicide, but according to research that won't flag you for failing anyway.
Easy part was getting together with him, giving him a condom, telling him to go ahead and fill that bad boy up and tie it off nice and tight. I took that filled condom, threw on some tighty-whities, or any underwear very tight/secure will work. I don't recommend boxer briefs because sometimes the legs aren't as tight and you don't want anything slipping down, especially because you need to have a tool of some sort to poke a hole. I used mini nail clippers, just threw those in with the condom, right under your sac basically. Since the condom will be elongated, it sort of sits from your "taint" up to the side of your thang. Pick which side you want it on.
Good test is to use water first, get used to the feeling of it in your pants. It won't be visibly noticeable, but you will likely be concerned that if you walk normally or sit you could burst it. You'd be surprised how resilient condoms are (manufacturers don't want them bursting and all). So fill one up with water, wear it around for a bit, sit down with it (because you will have to sit down at some point to fill out paperwork/sign forms), it won't break, trust me.
For me temperature was the most stressful part. I've heard they can be real strict insofar if its under 96 or over 98 they flag it. Dunno what sort of tests those are, but for pre-emp UA testing through Quest, your window is 90-100F. That should be plenty if you are doing it same day. If you are storing piss in a fridge or something I can't really help with that.
So basically he came over, peed in a condom, tied it off, I took the condom, put it in my undies, put the small nail clippers on the other side in my undies then went straight to the drug test place. On my way there I cranked up my seat warmer (if you have one crank it to full) and threw a fleece blanket I happened to have onto my crotch to really get the sweat going. It was only an 8min drive from my house to the testing facility.
I got in, acted smooth, didn't ask any stupid questions like "when do you get the results?" "when do you test for temperature?" "do people get false positives?" Just don't ask any questions really. At all. Smile, act comfortable but basically act like you're being forced to pee in a cup, because you are lol..
Got into the bathroom, since it was pre-employment UA I was not observed. They said take as long as you want, just don't flush, don't turn on the sink, don't open the top of the toilet. Easy stuff. He closed the door, I opened my pants (oh btw I dressed up a little bit, slacks and a tucked in Polo, felt I would look less like a shitball, which I don't anyway, but still, I acted like I just left work to do it), then I pulled out the condom, snipped the tip with the clippers while the condom was pretty much in the cup already, in case it shot out at a weird angle (which of course it did, so I was happy I cut it while it was in the cup already). Then I just squeezed it in like a tube of tooth paste. I actually ended up having way too much pee so I squeezed the rest into the toilet, which is allowed.
The guy told me that from the minute I say I'm done, they as techs have 4min to check the temp. The cup itself had a thermometer strip on it which is what they go off of. I didn't actually check that strip to see the temp because I was pretty confident, but my plan, in the event I felt it was too cold and I looked at the strip and it read 88 or something, would be to put the cup on the very edge of the toilet where it sort of rounds off, then accidentally knock it over and start swearing "Awww fuck, fuck, fuck, shit, fuck, uhhhhhh" then open the door and tell the guy, "Yea sooo....I dropped the cup...." Not sure what they would do, but at least it would trash that sample and just make you look clumsy. There's a chance they will make you hang out until you had to pee again, in which case you are fucked.
So anyway, I emptied the condom, stuffed everything back into my undies (which there was still a little reservoir left and honestly some of it leaked into my underwear and I felt very digusting--I showered immediately when I got home because my junk had someone else's piss on it). Then I opened the door told him I was done, he took the sample, checked the temp on the cup said "looks good to me" (ended up being 94F btw) and then I continued on to sign and initial the samples and forms etc.
Then I strolled on out of there.
TL;DR: For pre-emp UA ONLY: Friend pisses in condom, ties it off tight, store in tighty-whities under sac, include a small tool to poke a hole, go to testing facility ASAP to keep temp nominal, use seat warmer on high if you have it while heading there, go in bathroom, poke hole in condom, empty contents into cup, put used condom and tool back in underwear, turn in cup. You would have to be sitting around for quite some time for temp to go below their 90F minimum.