Last night I felt the baby move for the first time sitting on the couch next to my wife.  Of course, I had to have my hand on her stomach and wait forever for a little movement, but it was still there.  Huggies came up with a way for dad's to share the sensation that their pregnant wives were feeling in real time.It took several months to develop, but it seemed to be worth the time, as the father's had a pretty emotional response.

I'd try one of the belts, but doubt it would really strike me as an emotional experience.   It's just a machine, but maybe I'm wrong.