I played fiddle at a firewalk wedding ceremony a couple of years ago. I do not recommend combining a firewalk and a nuptial ceremony, with dancing afterwards. You need to have complete concentration to complete a firewalk successfully--and there are just too many "energy distractions" at a wedding. Such as the bride's grandmother wondering what in the Sam Hill is going on here....The bride and the groom spent the rest of the evening having their feet bathed...we had a great jam but they didn't dance much! (They are still together though, I saw them last month.) The worst afflicted feet belonged to the firewalking "minister", who suffered in private, not apparently much inclined to socialize with the wedding party....
Willie-O