Help with making a PSN name

I know you can use the letters of the alphabet (duh :P) for a PSN name and that it can be 16 characters long, but I was wondering what other characters can you use? Like can I use spaces or _ or +, $, %, ect.

I need all the things you can use in a PSN name

make something that will look funny when playing a fps online. just imaging your opponents reading:

you were just killed by a_hairy_dawg

or

you just killed Ur_MaMa

Why dont you actually try around? You know, play around with the name instead of asking us what characters are available?

If you are asking for a PSN name then why not "The-Game" or something like that?

You can add me if you like too: Alpha-Male22.