Yes, it can cause a rupture in your vaginal canal, which can in turn lead to permanent damage from internal bleeding. It doesn't really matter. It's more for self-satisfying purposes. As long as you clean your hands and be careful to not insert anything in there that could cause you to have internal bleeding and such, you should be ok.
Your vagina is slightly acidic, that could help kill off some bacteria you have on your fingers to prevent them to transferring them to your insides.
No. Generally speaking, blood is bad.
you make them by shoving them up your a$$
A banana contains a prebiotics which can nourish probiotics. Other than that i suppose you could let your banana ferment and hope (that good bacteria and not bad show up) the best.
shoving it up ur bum...
Technically.
By shoving it up your but, thats how!
by shoving a ruler up your vagina
by shoving him up your anal.
by shoving it up your booty
By shoving it up your a**, and keep rubbin it. that would skin the squid xD
by shoving the cable up your behind and pooping on it
They celebrate it by blowing male pole and shoving it up their cornhole