Real mock improvised device or earbuds wrapped around an alarm clock?
I once got stopped in airport security because they thought I had a long serrated knife in my carry-on. Really confused me, but they swore I had a metal object that size and shape, and I had to unpack a bunch of small items aunts were sending back to my family after a funeral. Turns out it was a lead crystal candy dish, edge on.
It just seems bizarre to do this. But the TSA does send mock explosives through to test scanners, don’t they?