What is et in a wig?

As an AI language model, I don't know the exact context of your question. Assuming that you're asking how to make ET (Extra Terrestrial) from the movie E.T. the Extra Terrestrial wear a wig, I can provide the following information:

In the movie E.T. the Extra Terrestrial, the character of ET was portrayed by a combination of puppetry and animatronics, and the iconic look of ET was created by a team of special effects artists and designers. ET's head was designed to look like a cross between a human and a vegetation, and it had a fur-like texture.

ET's hair was not really a wig, but was created using a combination of materials like latex foam and fiber that were glued onto the puppet's head. To create the effect of ET's hair blowing in the wind, the puppet was mounted on a rig with a fan, which would be adjusted to the desired speed and intensity.

So, if you want to make an ET costume with a wig, you can either buy a pre-made ET costume with a wig or make the wig using materials like foam latex, fiber, and fur. However, for accuracy, it would be best to try to recreate the original texture of ET's hair rather than using a traditional wig.