Straightening Bent Miniatures
The best way I have found of straightening bent miniatures seems to be to dip them in hot water then into cold water to set the plastic in a fixed position. I like this method as it does not flake the paint or damage the miniature. Some people use a hair dryer but I don't really like this method as there is more danger of damaging the miniature and after time it may revert to its bent shape as you can't get the heat deep into the plastic without the danger of damaging the paint.
It's all about whatever works for you so however you fix your miniatures it's up to you, there is no right or wrong way to do it.
You might need to do this a few times before you get it just right but once you have mastered it your miniature will be fixed forever.
This is how I fix my Miniatures:
You will need two containers large enough to get your hands into so that you can hold the miniatures and straighten them out.
Fill one of the containers with water and ice cubes so that the water is as cold as possible.
Fill the other container with hot (not boiling) water. Letting your hot tap run for a while should do the job.
Make sure that the water is not too hot as you will be putting your hands in it and don't be tempted to use tongs so you can use hotter water as you might damage the miniature. You also have to remember that the plastic rod joining the miniature to the base will bend if the water is too hot!
Dunk the miniature into the hot water for one to two minutes and hold the plastic where you want it.
Now dunk the miniature into the cold water keeping hold of the part you want to straighten so it keeps its shape.
The plastic will almost instantly harden but you should keep it there for a bit so that it can reset the plastics memory.
The main idea is to get the centre of the miniature soft, so please use your head when warming the miniature. Don't leave it in for too long!
You may need to repeat this process a few times to get the miniature just right because as time passes it reverts to its original shape (put the miniature in the freezer in between warming so it really cools down). Repeating the process resets the plastic's memory so that it takes on a new shape.
I have done this many times and it has always worked.