So I know I said I was going to show how to make your own Dust bases but I decided to show how to rebend your figures. I saw a couple of people show different ways on how to do it. So, I figure I would show how I do it and have visual step by step on how to.
First find a model that is warped most of the warped parts are the guns or arms.
Second turn a hair dryer on High and hot and blow it on your model for about 15 sec.
The model should feel soft. Repose the model to the way it should be.
Put it in cold water while holding the pose. This will reharden the model.
It also doesn't hurt paint, the water dip will hurt washes though so watch it if you have washes with no clear coat.