I made this skin for Fallout 3 initially, decided to bring it over to New Vegas. This should work with all versions of the game (English, French, German, Italian, and Spanish).

To install, just copy extract the zipped file into your 'fallout new vegas' install folder.
Browse to (...\Steam\steamapps\common\fallout new vegas)

Included files:
data\textures\pipboy3000\pipboybtnglow01.dds
data\textures\pipboy3000\pipboyglove01.dds
data\textures\pipboy3000\pc\pipboyarm01.dds
data\textures\pipboy3000\pc\pipboyarm01_n.dds
data\textures\pipboy3000\pc\english\pipboyarm01.dds
data\textures\pipboy3000\pc\french\pipboyarm01.dds
data\textures\pipboy3000\pc\german\pipboyarm01.dds
data\textures\pipboy3000\pc\italian\pipboyarm01.dds
data\textures\pipboy3000\pc\spanish\pipboyarm01.dds

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Installation:

Add the following lines into your archiveinvalidation.txt file. If you don't have one, create a new one in your 'fallout new vegas\data' folder. If you use Fallout Mod Manager you shouldn't need the text file.

textures/pipboy3000/pipboybtnglow01.dds
textures/pipboy3000/pipboyglove01.dds
textures/pipboy3000/pc/pipboyarm01.dds
textures/pipboy3000/pc/pipboyarm01_n.dds
textures/pipboy3000/pc/english/pipboyarm01.dds
textures/pipboy3000/pc/french/pipboyarm01.dds
textures/pipboy3000/pc/german/pipboyarm01.dds
textures/pipboy3000/pc/italian/pipboyarm01.dds
textures/pipboy3000/pc/spanish/pipboyarm01.dds

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Uninstall:
To uninstall just delete the following files, and remove the lines from archiveinvalidation.txt.

data\textures\pipboy3000\pipboybtnglow01.dds
data\textures\pipboy3000\pipboyglove01.dds
data\textures\pipboy3000\pc\pipboyarm01.dds
data\textures\pipboy3000\pc\pipboyarm01_n.dds
data\textures\pipboy3000\pc\english\pipboyarm01.dds
data\textures\pipboy3000\pc\french\pipboyarm01.dds
data\textures\pipboy3000\pc\german\pipboyarm01.dds
data\textures\pipboy3000\pc\italian\pipboyarm01.dds
data\textures\pipboy3000\pc\spanish\pipboyarm01.dds
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