Yeah saw something similar at Glastonbury many years ago, it was called a "she-pee" looked a bit like funnel and was being given to the ladies who wanted to use the men's urinals without having to queue for the horrendous toilets.
Aaron the red nosed reindeer. There are different schools of thought with the long run. it's purposes are to train your muscles to store glycogen, to improve you endurance over longer distances and generally prepare your body physically and mentally for being on your feet for hours. Personally I don't take them too slow. Maybe 45-60 seconds per mile slower than target marathon pace. If dipping under 4 hours for the marathon is your target, then 10 mins per mile is probably about right on the long run for now. the point of running them slow is so you don't over do it and get injured which could scupper your training plan. i have 5x20+ mile runs in my training plan. At least two of those will err on the quick side for that distance (one is a race) - I'm all about getting my body really used to running at marathon pace. Others will say you can't run an LSR too slow and it's more about time on feet, and that's fair point if you are going to run a 4&1/2 or 5 hour marathon, as that is tough grind on the body. For a faster marathon, there isn't that much value in taking them too slow. If you are setting yourself a time goal, then I would advise bringing a couple more 20+ mile runs into the plan.
Stuart. 6.49 minute mile x 26.2= 2 hours 59 mins 59 secs. If you can run 12 miles at that pace without feeling completly knackered 3 hour might be a realistic goal to set yourself, though as its your first, enjoyment should be the priority. Have you a recent result from a proper race, we could try to calculate your current fitness and marathon pace?