Custom Shaped Button

   
  
<Window x:Class="ControlTemplates.SimpleShapedButton"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Shaped Button" Height="510" Width="600">
  <Window.Resources>
    <ControlTemplate x:Key="ButtonTemplate" TargetType="{x:Type Button}" >      
        <Grid>          
          <Path Name="Border" Stroke="Red" StrokeThickness="2" Stretch="Fill">
            <Path.Fill>            
                <RadialGradientBrush RadiusX="1" RadiusY="1" GradientOrigin="0.7,0.3" >
                  <GradientStop Color="Red" Offset="0" />
                  <GradientStop Color="Blue" Offset="1" />
                </RadialGradientBrush>            
            </Path.Fill>
            <Path.Data>
              <CombinedGeometry GeometryCombineMode="Union">
                <CombinedGeometry.Geometry1>                  
                  <EllipseGeometry Center="70 20" RadiusX="50" RadiusY="25"></EllipseGeometry>
                </CombinedGeometry.Geometry1>
                <CombinedGeometry.Geometry2>
                  <RectangleGeometry Rect="100 0 150 30"></RectangleGeometry>                  
                </CombinedGeometry.Geometry2>                
              </CombinedGeometry>
            </Path.Data>
          </Path>
        <Rectangle Name="FocusCue" Visibility="Hidden" Stroke="Black" StrokeThickness="1" StrokeDashArray="1 2" SnapsToDevicePixels="True" ></Rectangle>
          <Border Margin="5,10,5,10">
            <ContentPresenter  Name="Content" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" TextBlock.Foreground="White"></ContentPresenter>
          </Border>
        </Grid>
      <ControlTemplate.Triggers>
        <Trigger Property="IsMouseOver" Value="True">
          <Setter TargetName="Border" Property="Fill" Value="DarkRed" />
        </Trigger>                
        <Trigger Property="IsPressed" Value="True">
          <Setter TargetName="Border" Property="Fill" Value="IndianRed" />
          <Setter TargetName="Border" Property="Stroke" Value="DarkKhaki" />
        </Trigger>
        <Trigger Property="IsKeyboardFocused" Value="True">
          <Setter TargetName="FocusCue" Property="Visibility" Value="Visible"></Setter>
        </Trigger>
        <Trigger Property="IsEnabled" Value="False">
          <Setter TargetName="Content" Property="TextBlock.Foreground" Value="Gray"></Setter>
          <Setter TargetName="Border" Property="Fill" Value="MistyRose"></Setter>
        </Trigger>
      </ControlTemplate.Triggers>
    </ControlTemplate>
  </Window.Resources>
  <StackPanel Width="150" HorizontalAlignment="Left">
    <Button Template="{StaticResource ButtonTemplate}" Click="Clicked" Name="cmdOne">A Simple Button
    </Button>
     <Button Template="{StaticResource ButtonTemplate}" IsEnabled="False" Click="Clicked" Name="cmdFour">
      <StackPanel>
        <Label>sfsdfsf</Label>
      </StackPanel>
      
    </Button>
  </StackPanel>
</Window>

//File:Window.xaml.cs
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace ControlTemplates
{
    public partial class SimpleShapedButton : System.Windows.Window
    {
        public SimpleShapedButton()
        {
            InitializeComponent();
        }
        private void Clicked(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("You clicked " + ((Button)sender).Name);
        }
    }
}