I am all for this idea, but one issue I have encountered trying to organize something similar that the organizers will have to deal with is the acceptability of some participants to other participants. I need to start by emphasizing that everybody is entitled to their own preferences and limits without being judged for them.
First is the issue of sexuality. Will those in the community for whom suckling is completely divorced from sexual desire attend or be comfortable if other peoples suckling leads to sex? Will those for whom sex is a natural and desired consequence feel they can indulge their preference without being judged by those who do not share it?
Second is the issue of single men. Will the couples object to the presence of single men? Will the single women object to the presence of “too many” single men? How many is “too many”. I don’t have all the answers, but I think it’s best to recognize and deal with these challenges up front.