That could be a clue! 
I have a lot of time on my…ahem hands.
What Eats_Crayons said. I’ve, uh, had a few other female bits placed into my hands at time, and yeah, I think I could figure mine out about 80% of the time-- partly from the unusual piercing, partly from the harmless lumpy spots that develop over the years, partly because I’m, um, the female equivalent of a 2" man. Fortunately for me, this is not a problem.
I just realized I’ve told >1000 strangers a rather long description of my genitalia. I think I’m going to get very, very drunk now. :smack:
Depends on how cold it is.
Okay, so proprioception is a problem. So let’s say that we surgically removed (a la Face/Off) your bits and put them on a mount with two other pairs of bits.
Now we turn off the lights (no fair peeking!) and you have to pick a set of bits to have reattached to your own body.
I think it’s pretty clear that in this situation my bits are the big ones. 
Bad how?
For the purposes of this thread, I’m going to imagine we have a device that can swap peoples’ consciousness, that we are blindfolded, and can only touch the genitals of the body you’re in, and you have to decide if you’ve been swapped back into your own body, or someone else’s.
Yes, I think I could tell. Every guy should be checking his testicles regularly, and carefully so you can tell if something about them changes.
I could probably tell by my dick too, but I’m not telling you why. 
How much stimulation are we allowed? I have no doubt that I could do it if they were hard, although soft might give me some problems. And I don’t think the balls would help much at all. Mine vary too much in size and scrotal tightness.
I have scar from when I had Chicken Pox that is slightly raised, though very small. I figure I could identify myself by that.
I imagine if you had no tactile senses, it might be tough to get your groove on.
I think I could tell mine if this sensory deprivation chamber isn’t one of those ones that you float in. I need gravity. But then, easy. The little walrus has a distinctive angle, curvature, and twist under a standard 1 g field.
The…little…walrus?
:smack:
It was the meter of the comment by incubus: Where did this foreskin come from? that made me think of the song by Talking Heads on which my post was parodied.
Hey levdrakon, If you’re gonna swap me into another body, can I have one with girly bits? I like that kind for prolonged touching. 
I’ve noticed. I do find it amusing to see what you have come up with, though.