Creating a custom notification popup in c# wpf

I am currently working on a C# WPF project. What I want to be able to do is allow the application to minimise to the system tray area which I have done without problems. The main thing I want to achieve is when the user clicks on a certain item within the program a notification message appears in the bottom right corner of the screen above the task bar near to the system tray notification area. I know I can use the balloon tip but this isn't want I want to use. Instead I want to have my own custom window that appears in the same sort of area as开发者_StackOverflow社区 the balloon tip but I can style it in my own way.

What is the best method to achieve this custom notification popup. Thanks for any help you can provide.

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You might want to take a look at the answers for WPF Notifications and/or toast style popup for my application. The second one is a WinForms app, but the same ideas should apply.