Well I guess our disagreement is that the world at that point had the dynamic where any electronic item was to be confused with a bomb. I was alive in 2007, some LED lights arranged in a star would certainly not have screamed "bomb" at me, and I would not have expected anyone else to have been scared of it either. If she was carrying around a clock like that one kid made, maybe, but even by 2007 movie standards a bomb would at least have a countdown timer of some kind

I'm imagining her wearing something like https://www.flashingblinkylights.com/jade-led-christmas-tree... with a little less production value, if that can be mistaken for a bomb then those people better stay away from office christmas parties