Pendulum Button
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib"> <StackPanel Width="200"> <Line X1="100" X2="100" Y2="200" StrokeThickness="3" Stroke="Black" /> <Button Content="{x:Static s:DateTime.Now}" HorizontalAlignment="Center" /> <StackPanel.RenderTransform> <RotateTransform x:Name="xform" CenterX="100" /> </StackPanel.RenderTransform> <StackPanel.Triggers> <EventTrigger RoutedEvent="StackPanel.Loaded"> <BeginStoryboard> <Storyboard TargetName="xform" TargetProperty="Angle"> <DoubleAnimation From="-30" To="30" Duration="0:0:1" AccelerationRatio="0.5" DecelerationRatio="0.5" AutoReverse="True" RepeatBehavior="Forever" /> </Storyboard> </BeginStoryboard> </EventTrigger> </StackPanel.Triggers> </StackPanel> </Page>