You have tried EVERYTHING?
There are sure a lot of ways to try. I think I could try something different almost every couple days for months and still not run out of things to try! lol!
Frozen thawed
Live
front half of pink
back half of pink
pink cut in half lengthwise
brained
scented with mouse shavings <live and dead>
scented with rat shavings <live and dead>
scented with gerbil shavings <live and dead>
scented with anole <live and dead>
scented with frog <live and dead>
with pieces of shed lizard stuck on <live and dead>
scented with tuna juice <with and without brine>
brushed with scrambled egg
all methods above used in deli cup overnight in pitch black room or drawer
tease feeding
gently putting the pinky head in the snakes mouth
thouroughly washing the pinky with ivory soap, rinsing well
try feeding a frog or tadpole <obviously it would need to be appropriate size>
feed an anole
Bopp the snake on the head with pink a few times
move pink slightly with forceps just behind dish, cave or other blocker <snake may believe it is hunting>
force feeding two to three times then try all above methods again
I have seen even more methods than these as I said, I doubt you have tried EVERYTHING in such a short time!
By the way I have been advised by more than one person I hold in very high esteem to only try every two to three days and not handle the baby for any reason in between.
Also make sure your husbandry methods are as they should be. Ie. both ambient temperatures and warm areas are at the right levels maintained by thermostats or rheostats, proper ventilation, hiding spots available. Fresh clean water. Some people believe too large a cage can be stressfull others believe the opposite. Make sure you don't have more than one corn in the same viv
If all else fails, don't be too upset and realize that some babies, were just not meant to make it... GOOD LUCK!
Rebecca