How can I decorate a button face with custom drawing

Subclass Button and add a custom Paint event handler that does you custom drawing.

  public class MyButton : System.Windows.Forms.Button
  {
    public MyButton()
    {
      this.Paint += new System.Windows.Forms.PaintEventHandler(this.button1_Paint);
    }
    private void button1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
    {
      //custom drawing
      Pen pen2 = new Pen(Color.Red);
      pen2.Width = 8;
      e.Graphics.DrawLine(pen2, 7, 4, 7, this.Height - 4);
      pen2.Width = 1;
      e.Graphics.DrawEllipse(pen2, this.Width - 16 , 6, 8, 8); 
    }
  }