I am pleased to report that the hot water/cold water method works.
Boiled some water in my glass electric kettle. Let it sit for a while - half an hour? - until it was still hot but I could comfortably put my fingers in it. Poured some into a small bowl, plunged the branch in, let it soak for a bit, manipulated it into shape, then doused the reformed branch with cold water. It "froze" into the new shape.
Soon I will do the rest of the branches and maybe do a Teutoberg dio.
Thank you everyone for your advice! Playmofriends is righteous.
Before:
![](http://i.imgur.com/nJH7kyB.jpg)
After:
![](http://i.imgur.com/t40KQCD.jpg)