It is a Chassidishe minhag.
When marrying off our youngest i was very against it. However, a few days/nights before the wedding my son happened to come across the minhag in a sefer(i will ask him if he remembers the source and yes this son is a real talmid chachim and full time real learner) and we went with the theme. On the womens side the girls and young ladies danced around me first and then other forms of us dancing with the brooms and then the men got the brooms and they had their dance. Being it was after Purim the men wore Yerushalmi levush. There was no mixed dancing at all!
There are gemachs that rent out very nice brooms for this purpose, i am sure at least one of them know the source.
Mazel Tov and lots of nachas!