So I was looking through some threads a week or so back and ran across one with a really nice custom bike. I can't remember where exactly, but it had a lot of one off custom pieces on it and had some sweet low profile LED front turn signals that had been fabricated. Anyways the signals seemed to catch the attention of quite a few (me included) so I started looking around and came across a set very similar to the ones I saw. Here's the link:

http://www.chromeglow.com/catalog.asp?prodid=543008

Definitely not the cheapest mod I've seen but a nice touch I think!

 

these as well:
http://www.badlandsmotorcycleproduct...al-Mirrors.htm

 

I have heartland signal mirrors and love them.

Another option is to get some mini bullets and mount them under your bottom tree inside the fork tubes.

Way cheaper and less stupid looking than the first ones you posted.

 

It's a matter of taste. I thought the signals were cool, but I think the mirrored signals are a better way to go. I really liked the brake and turn signal LED for the Deuce. Just a matter of taste.

 

I had these in black on my black Streetbob.
http://www.ebay.com/itm/HARLEY-DAVID...sories&vxp=mtr

 

About as low profile as you'll get unless you just take them off.

http://www.youtube.com/watch?v=866f11eG0EA

 

Not the best pic...but these are the heartland mirrors

 

I really like those bar end signals

 

Here's what the mini bullets look like on te lower tree. I did this the first time I tore into my bike. Haven't seen anyone else running it.

 

Those must be really small or I am really blind, maybe both.