Although I prefer to dwell on sno cones or ice cream cones, one thing you might want to try if you have a morbid fear of poop cones is to do something you ought to do occasionally anyway. On your way out of the house to go camping or to put you unit in storage, dump the ice maker contents from your home fridge into the RV toilet. Then as you drive it a few miles, you will bombard the poop cone with ice to break it down, then dilute it with water as the ice melts. You'll also be making a bin of fresh ice that's not all stuck together as they get if you don't empty them. By the way, when I was in VietNam years ago we sent Seabee Teams out to the local villages to build collection tanks for "night soil" (Asian for poop) that would then evolve out methane gas into a piping system that was used to provide gas to a burner in the local sick bay or to gas light fixture. It's really a nice resource. And Ron, you know some stuff, but in my and my wife's case, one of the main reasons we like RV travel is NOT having to walk to a campground bath house on a dark rainy night to poop.
