Well I have only done the hand RC in a dream twice, and I didn’t get lucid either time, but it was interesting. The first time they looked normal but there was a white rectangle covering the middle 2 fingers that I can best describe as resembling a graphics bug in a video game. The other time my pointer and middle finger were wrapped around each other and stuck that way.
My hands mostly look normal, except that my thumbs are on the opposite sides of my hands. 
I usually don’t look at my hands, the one time i did it was like a fleshy flame
at the only time I have looked at my hands in my dream they looked like normal (didn’t count fingers) but little bit darker and smaller … but I think I didn’t see my arms 
oh … and everything else was very blurry at the time I focused to my hand … 
Seems to vary a lot, but the most common thing is an extra finger (looking like a nastily mutated hand), then a missing finger, and once I had a skeletal hand.
Just a few days ago, I had a LD with an OBE, and when I looked at my hands they were very thin, almost transparent and the index was almost wrapped around the other finger.
You know, I could have sworn I replied to this thread like a million years ago, but I guess not. Either way, the only time my hands were noticeably odd in a dream, they were invisible. I could still feel that they were there, but there was just an empty space at the ends of my sleeves. If I focused my eyes funny, like the way you look at those magic eye pictures, I could see faint outlines as if the near-invisible images were overlapping just enough to barely perceive them.
On a non-visual note, though, I often stick my fingers through the palms of my hands as a RC. Feels pretty cool in both hands.
I only looked at them in 1 LD, but I didn’t notice anything weird. I forget to count my fingers, so can’t tell if the number was wrong. 
in the two LD`s i have had so far, my hands have looked the same.
they were blurry,and had the same shape as my RL hands, except i had a small twisted finger growing from my middle finger.
In the lucid dream I had after the eclipse, I looked at my hands and they were bent up and twisted. They were really F’d up and I had an extra middle finger.
About the same but with more fingers - my reality check
I usually just have 6-8 fingers… not looking like a normal hand with it… it just looks proper with the extra fingers.
My hand has never looked out-of-the-ordinary, just with a few supernumerary digits
The only time I ever got a look at my hands was when they appeared blurry and I was able to put my finger through them.
They were more watery, now that I look back on it.
My hands look perfectly normal, but I can put a finger through them as well.
I constantly look at them inside LDs, somehow they help me to keep focus.
Sometimes extra fingers stick togheter
Mostly with more fingers, but only once I had hands exactly like Na’vi people had in Avatar…
Nowadays like normal, but I havent observed them that much, I tend to RC through walls
i can never remember…
Wow just found this website so this is my first post I didn’t realise so many people have weird visuals with hands and fingers. Last night I used my hands to wake me up from a nightmare however that made it worse. I had 6 fingers and they were all blurry like an old VHS tape then I heard really loudly “MY HANDS” and woke up rather freaked out.
The few times I’ve seen my hands in my dreams it brought forth lucidity instantly. I find they are blurry at first but look very much like my waking hands. No extra fingers but they do seem to be illuminated, like they have a glow to them.