Target Shower is an addon that allows you to create your personal interrupt list.
When target casts spell that was placed on one of three lists (depends on what list is currently active), it displays big red warning in the top of the screen.
Each character have her/his two unique lists to edit. The third list is set by default*.
Addon displays 3D model of your current target, it is possible to manipulate it. (rotate, zoom in, out)
*it isn't character wide, and you can edit that profile.
Hope you like my addon :)! I'd love to get some feedback!