Can you wear spikes/studded clothes and jewelry on a plane?

I did once on a flight from Tampa to New Orleans.  JUST to **** with the TSA cunnts.  I wore a pair of bondage pants that had metal studs and chains all over it.  I got to the metal detector, the old man there looks at me says OK, go through.  NOT A PEEP.  He shook his head, asked me to go through again.  NOT A PEEP.  I said what's the matter?  he's like I just don't understand.....I flipped him off and said try calibrating your machine asshole!  And walked on to my plane.  I've got NO respect for TSA and their bogus bullshit.

It depends on the length of the spikes. From what you indicated, I am likely to to believe that the length is small. Just keep it in your carry-on.

It will depend on the nature of the actual items - those that are deemed a potential threat will not be allowed through the security checkpoint, whether you are wearing them or taking them through in a bag.  Then you have to make the choice to try checking your items, taking your items back to your car, or abandoning your items - the first two of which could cause you to miss your flight.  I wouldn't take the chance with anything that is particularly long or particularly pointy.

Sure. Just don't try to wear them through the x-ray.  And if they can in any way be used as a weapon, they may be seized at the security check. 

Maybe this is addressed on the TSA site. 

Most Airlines are now enforcing a dress code to fly.  I would call the Airline you wish to travel with, and ask them what the dress codes are to fly on their Airline.