Put 12 pencils in ur mouth!
Simple and classic challenge. If one marshmallow falls out its over, you can try to use your fingers to keep it in as much as you can (that's what she said)
sneek up on your friend and put pop rocks in their mouth and watch their reaction! lol But plz don't let them choke!
take a bandana and stuff it in ur mouth. If ur really brave, then bring ur dad in on the dare as well...see what he says/does...good luck......