Well, Trevor, I'll take your questions as you've numbered them:
1) Many Western Protestants still use priestly robes with the collar, most especially those descended from the Anglican tradition, like
Episcopalians and Methodists. Many of the predominately African-American denominations adamantly hold to these traditions.
2) No, most Protestant weddings do not end with the couple falling to the ground, at least not in the church. However, at the types of churches where the minister feels the need to place hands on people's heads and shout this is quite a common occurrence, and not just at weddings. Notice how the minister gives a little shove at the end of his "blessing" so that the couple know it is now time to be "slain in the Spirit".
