remove your front bumper, unscrew the front grill from behind and then pop out the entire grill w/emblem.https://www.celicahobby.com/ubbthreads/showflat.php?Number=87485
Now you have two choices;
A) ou can take your chance by trying to heat up the glue WITHOUT melting the plastic, and take the chrome emblem off
B) Buy a whole new grill for $28 and emblem for $11. You can paint the new emblem for $4 or just get them colored from toyota for $42 (they call them "gold package", but the emblems are still plastic and come in several different colors)
I decided it wasnt worth trying to take apart the one I had, so instead I when with (B) and bought a new one and painted it the color I wanted...
Testors - 1634
Transparent Black Window Tint 3 Oz. Spray Can http://www.testors.com/catalog_item.asp?itemNbr=1414
Testor All purpose Enamels are fast drying, easy to apply and can be used on many kinds of surfaces. Finely ground pigments mean superb flow and coverage. All colors are carefully controlled from batch to batch and each bottle color exactly matches its corresponding aerosol spray color. Testor bottle and aerosol spray enamels are all lead free. *****NOTE*** Enamels require 48 Hrs. to completely cure.