Listen to/feel lightning
I recently watch moon ribas seismic implant LINK and was thinking about what else this concept could apply to.
Then I remeber back to when i was messing with tesla coil to this weird little build that would let you listen to lightning strikes miles away. LINK
I feel like this could be done easily enough as a wearable to start. Build one of the detectors, connect it to your computer and rather than having it produce sound, send the signal through bluetooth or something similair to the wearable and make it vibrate. You could even build 3 detectors and put them in a big triangle. Then have 3 vibrating motors in the wearable. May let you triangluate where the signal came from. plus 10 points if the thing adjusted for your rotation relative to the detector.