personaly i think the safest gag is just the regular cleave gag. you can breath through it, not very effective at all but a lot of people love the look of it.. so its pretty much just for looks really.
the most effective gag is a stuffed tape otm gag, but you really want to be carefull of what stuffing you use, what tape you use and how tight you tie the otm gag tho. Everybody already gave you suggestions on how to stuff your mouth, what i suggest is how to make sure you dont choke, which is to basicly make sure that it is really stuffed into both your cheeks.
i think the one of the safest and effect gag is a ball gag, because you have the safty of the straps to keep the ball in your mouth and not go down your throat and you have the effect of something big stuffed into your mouth
