a pod that I did this morning:
(yes, I suck at making flames look nice)
I left the pod in for like 20 minutes and it was a weird plastic so it didn't dye very well
I used scotch painters tape to mask off the flames and just drew the pattern in pencil, used an exacto knife to cut out the pattern and sprayed over the pod with that spray paint that bonds to plastic. (note: spray paint goes on thick, so just use one coat or spray over the finished product with a clear coat)
the revy lid that I was talking about earlier:
(I forgot to clean the part beforehand)
all I did was dye about 2/3 of it red and then hang the other half by a string into the pot and tried to move the lid up and down in the pot periodically to give it the fade effect.