If you want to add a little Lua code to your scenes you can try the idea discussed here: Push Notification plugin stopped working on Vera Plus - #6 by RLKinMD
It allows you to customize your notifications in many ways, for example, you specify the title, the message content, the destination (your mobile or anyone else), and even the sound that plays on your mobile when receiving the notification. It requires you set up a free account with Pushover an have that app on your mobile.