Here is some research in various domains. All these tools are open source. They were made ​​in a non-commercial setting. If you have any improvements or questions, please feel free to contact me.

1_White Balance Picker for Nuke
You can pick a color on your shot and match this color to a middle grey(default) or the color of your choise.
download file

2_Stereoscopic Convertor for Nuke
This node can generat a left and a right eye with the 2D render and the Z depth. That is just a fake based on pixel displacement, if you want a real 3Ds, you must render 2 eyes. The main use is for 2D elements like as matte painting.
download file

3_Environnement Light Tool for Nuke and Maya(Arnold render version)
This tool is use for, conform and publish environment map in Nuke and use them in Maya with simples setting.
download file