After two days of high humidity the dang thing is still bendable. Help!!!!

I'm not sure how long you have, or how big/thick it is, but I would start over and this time use mostly gumpaste and add A LOT of tyolse power to it. Work fast, and let it set up. Should be hard in no time.

I agree with Isabelle24 but I use a fan on low speed with some circulation on the bottom too.

Put it in the oven with the light on but the oven turned off. You won't believe how hot it will get in there with just the light on. I have dried flowers made from gumpaste like this when I need it in a hurry.

I use my dehydrator on low. I can even stack the extra tray on it when I do lots of flowers. The fan circulates the heat nicely.