Ruby allows you to use the ruby pawn (known as the old EveryPower pawn). It also allows you to use a jewel pattern in your name.
Add (glow#0#jewel#ColorCode#rEffect) to your name. For a list of effects, see here.
You can use multiple color codes, resulting in several different colors moving throughout your name:
For example: (glow#0#jewel#ff0000#ffff00) would result in a red and yellow jewel pattern.
You can also change the direction and angle that the jewel pattern moves in throughout your name:
For example: (glow#0#jewel#ffffff#r145) would result in a black jewel pattern rotated 145 degrees.
Note: You can use any color if you have Everypower. Otherwise, most colors are available but not green ones.