This shows a cat in your console.

Cat.cs

/// <summary>
/// This program draws a cute cat on your console.
/// View more at the gist over here.
/// https://gist.github.com/Those45Ninjas/7a18755b07aff61c4f37c1c27de449c6
/// 
/// This cute cat was sourced from textart4u.
/// http://textart4u.blogspot.com/2013/02/cute-cat-face-ascii-text-art.html
/// 
/// Code written by Those45Ninjas
/// </summary>

using System;

class Cat
{
    static void Main()
    {
        // Save the position of the cursor for later.
        var oldLeft = Console.CursorLeft;
        var oldTop = Console.CursorTop;
        
        // Draw the cat picture.
        CatPicture.Draw(ConsoleColor.DarkGray);

        // Reset the cursor position so you can continue with your terminal.
        Console.SetCursorPosition(oldLeft, oldTop);
    }
}

/// <summary>
/// The cat picture class used to draw cats down the bottom right of the terminal.
/// </summary>
static class CatPicture
{
    static readonly string[] picture = new string[]
    {
        "                             ▓▓█",
        "                           ▒██▒▒█",
        "                          █▓▓▓░▒▓▓",
        "                        ▒█▓▒█░▒▒▒█",
        "                       ▒█▒▒▒█▒▒▒▒▓▒",
        "▓▓▒░                  ▓█▒▒▒▓██▓▒░▒█",
        "█▓▓██▓░              ▓█▒▒▒▒████▒▒▒█",
        "▓█▓▒▒▓██▓░          ▒█▒▒▒▒▒██▓█▓░░▓▒",
        "▓▒▓▒▒▒▒▒▓█▓░  ░▒▒▓▓██▒▒▒▒▒▒█████▒▒▒▓",
        "▓░█▒▒▒▒▒▒▒▓▓█▓█▓▓▓▓▒▒▒▒▒▒▒▒██▓██▒░▒█",
        "▓░▓█▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓████▒▒▒█",
        "▓░▓██▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▒▒▒▒▒▒▒▒▒▓██░░░█",
        "▓░▓███▒▒▒▒▒▒▒▒▒▒▒▓█▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▒▓▓",
        "▒▒▒██▓▒▓█▓▒▒▒▒▒▒▒▓▒▒▒▒▒▒▓▓▓▒▒▒▒▒▒▒▓▒█",
        " ▓▒█▓▒▒▒▒▓▒▒▒▒▒▒▒▒▒▒▒▓█▓▓▓▓█▓▒▒▒▒▒▒▒▓▒",
        " ▓▒█▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓      ▓█▓▒▒▒▒▒▓█",
        " ▒▒▓▒▒▒▓▓▓▒▒▒▒▒▒▒▒▒▓▓   ░▓▓   █▓▒▒▒▒▒█",
        "  █▒▒▓▓▓▒▒▓▓▒▒▒▒▒▒▓▓   █████▓  █▓▒▒▒▒▓▒",
        "  ▓▓█▒     ▒▓▒▒▒▒▒█   ░██████  ░█▒▒▒▒▓▓",
        "  ▓█▒  ▒███ ▒▓▒▒▒▒█    ██████   ▓▒▒▒▒▒▓",
        "  ██   █████ █▒▒▒▒█     ███▓    ▓▓▒▒▒▒▓",
        "  █▓   █████ ▒▓▒▒▒█             █▓▓▓▒▒▓",
        "  █▓   ░███  ░▓▒▒▒▓█          ░█▓▒▒▒▓▒▓",
        "  ██         ▒▓▒▒▒▒▓▓      ░▒▓█▓    ░▓▓",
        "  ▓█░        █▓██▓▒▒▓█▓▓▓▓██▓▓▒▓▒░░▒▓▒▓",
        "  ▒██░      ▓▒███▓▒▒▒▒▓▓▓▓▒▒▒▒▒▒▓▓▓▓▒▓",
        "   █▓█▓▓▒▒▓█▓▒░██▒▒▓▓█▓▒▒▒▒▒▒▒▒▒▒▒▒▓▓█▒",
        "   ▓ ░▓▓▓▓▓▒▓▓▓▓▒▓▓▓▒▓▒▒▒▒▒▒▒▒▒▒▒▓▓▓▓▓▓",
        "   ▒▒▒▓▒▒▒▒▒▒▓█░ ░░░ ▓▓▒▒▒▒▒▒▒▒▒▒▒▓██▓▒",
        "    █▓▒▒▒▒▒▒▒▒▓▓ ░░░ ▓▓▒▒▒▒▒▒▒▒▒▓▓▓▒▒▓▒",
        "     ██▓▓▒▒▒▒▒▒█▒░░░░█▒▒▒▒▒▒▒▒▓█▓▓▒▒▒▒▒",
        "    ░ ▒██▓▓▒▒▒▒▒█▓▒▒▓▒▒▒▒▒▒▓███▓▒▒▒▒▒▓▓",
        "         ░▒▓▓▓▓▒▒▓▓▓▓▓▓████▓▓█▒▒▒▒▒▓▓█░"
    };

    /// <summary>
    /// Draw the cat.
    /// </summary>
    /// <param name="colour">The to draw the cat in.</param>
    public static void Draw(ConsoleColor colour)
    {
        // Set the colour.
        Console.ForegroundColor = colour;

        int v = 0;
        for (int i = picture.Length - 1; i >= 0; i--, v++)
        {
            // Move the cursor to the right minus the width of the picture.
            Console.CursorLeft = Console.WindowWidth - 39;
            // Move the cursor to the bottom minus the vertical offset.
            Console.CursorTop = Console.WindowHeight - v;

            // Draw a line of the picture.
            Console.Write(picture[i]);
            
            // Move to the next line unless it's the last one (for is in reverse (forr))
            if (i != 0)
                Console.WriteLine();
        }

        // Reset the colour because we are good programmers.
        Console.ResetColor();
    }
}

It looks like this.