Auto body repair & detailing: fibreglass, fiberglass cloth, car trunk

Question
how would i go about making fibreglass that would do a good job when customizing my car trunk?

Answer
TJ,
 You will need fiberglass cloth, fiberglass fiber, resin, and hardener.   Mix resin and hardener, in proper amounts according to directions,  submerge the cloth and form to how you want it to appear.  Allow to dry overnight and finish shaping with the fiber and resin  mixture.
Thank you,
Mike and Lisa