There are many who wear me
I protect them from harm
Others say I'm lucky
And use me for charm
I can cause an attraction
Of a physical sort
While some folks will throw me
For amusement and sport
Who am I - can you guess?
I'm so much like you
You'll nail it, for sure
If you think this one through
You are a
horseshoe
There are many who wear me I protect them from harm
they are horses
Others say I'm lucky And use me for charm
it is a symbol of luck
I can cause an attraction Of a physical sort
A horseshoe shaped magnet
While some folks will throw me For amusement and sport
Throwing horseshoes onto pegs, I don't know the exact name
You'll nail it, for sure
A reference to the nails with which the horseshoe is attached to the hoof
Update, two last clues (after comment)
I'm so much like you
the letter U
Nebulous (I had to google that one, hope it counts)
Horseshoe Nebula, a celestial object
