There are a few hybrids that result from hatching your Stormzilla with other Grandmaster pets. I hatched my Helephant with a Stormzilla and got a Burnzilla (looks like a flamezilla with stripes on it's back).
You can't dye the Stormzilla different colors however.
I don't actually think it is. If you really DO want to spend a lot of gold then you could try hatching with another level 48 school pet to maybe get... A special color? If you want to see what colors you can get with hatching... http://www.wizard101central.com/forums/showthread.php?t=54829 There is a few different colors at the bottom (start at bottom of page and then go up) You HAVE to hatch with a level 48 school pet Examples: Pink, Red, Green, Black, Blue, or Yellow
