Here, I made you one:
[spoiler:1sb7gn4t]+------------------------------------------------------------+
|=-=-=-=-=-=-=-=-=-=-JENALLA SELAR-=-=-=-=-=-=-=-=-=-=|
|-=-=-=-=-=-=-=-=-=-=GREEN XTREME=-=-=-=-=-=-=-=-=-=-|
+------------------------------------------------------------+[/spoiler:1sb7gn4t]...
You probably want to check our the artistic forum(s). There is no official system for signatures, though some people will offer to do them for others. Sometimes at a cost. For example, I require some tribute of baked goods from a woman's own kitchen.
See-through bits!? :eek :look
But the BEST part of PNGs is that they not only have transparency, but unlike GIF (which also has transparency), PNG transparency is 8-bit. Meaning you can have half-transparent parts and everything. That's why the "cut out" images look so pretty and not jaggy edges ^^
"Portable Network Graphics": http://en.wikipedia.org/wiki/Portable_Network_Graphics
Probably like the best image format in the world. Helloooooo alpha channel transparency :pimp