Hi, Rusty!
Have you discovered a connection between the Brush Dance and "jumping the broomstick" to get married?
Now , "tying the knot".....
I am thinking that I have read somewhere that twine/cord is tied around the wrists of bride and groom joining them together, to signify being "united", as a part of the wedding ceremony?
However, this is but a hazy thought...and I do not know what religion would use such a symbol?
I have looked in Brewers, but could not find anything relevant.
Yes, coffee sounds a good idea....