I have used a few that are inserted in side the woman.. Those models you need to take out the batteries and I also recommend putting the egg inside a condom...if she gets to wet her juices will corrode the egg..
Butt omg I loved using it on the girls when out playing..
Geez, I thought this thread referred to a vibrator you could fly over tornado scenes and traffic jams. "For a closer look at the carnage, let's go to our flying dildo cam."