Добавил: The DSystem
These are the first skins I made, and I intentionally made them to looks simple, hence the name.
Unzip "cstrike" into C:\Program Files\Steam\steamapps\%USER%\counter-strike.
It will say that there is already a folder named "cstrike" and possibly the same with "models."
Click "Yes to all" or the equivalent for your operating system.
There are also other ways to do this, which you can find elsewhere.
Personally, I copy all the .mdl's and paste them in C:\Program Files\Steam\steamapps\%USER%\counter-strike\cstrike\models.
This contains the v, w, and p models for all three grenades (Flashbang, HE, and Smoke).
Custom menu icons!
This will all be repeated in the comments of the .zip file attached.