I travel with a bunch of USB cables, chargers, headset, backup hard drive, extension cord, and other assorted doodads. Each cable is separately bundled with wire ties, but they're all crammed into the same packing cube. Occasionally screeners pull out the packing cube and look at it, but I haven't had any major hassles.

I recently moved by plane to another country so I had even more electronics than usual in my carry-on, along with bike lights, plumbing parts, and other non-touristy items. The scanners just wanted to see the plumbing parts.