First, of all, I don't know if I suggest this application, as it could be potentially dangerous, but I had to share.
One morning, as I was getting ready for work, I decided to put in my Helix before I left. But I did one other thing. I clipped an elastic band onto the handle and pulled it up through my butt cheeks and clipped the other end on the front of my briefs. I find that when you're not in a position to get your hands on the device, this seems to keep it snugly against the prostate.
I found that while driving, every bump in the road sent great sensations through my prostate. I also utilized a lateral left to right swaying of my hips to move the Helix from side to side.
It was a little bit uncomfortable having to sit on the car seat, and at one point, I was going to pull over and undo the whole thing. But more pleasure was present that pain, so I kept going.
When I got to work, I left it in as well. Everytime I sat down in my office chair, it pushed the device up more and felt so great. I would do periodically do sphincter contractions as well (it's good to wear TIGHT briefs, so as to conceal erection).
I never orgasmed, but it just felt great to have the thing in all day long. People even mentioned that I was in a better mood!
Might have to try this again.