I brought this up over dinner to my peers in tonight's Berlin Kiez Club meeting as a possible event. Needless to say, we giggled ourselves silly! (Or, rather, two of us did.)
But, in all seriousness, I attended a rope-tying workshop with an American woman I know and we really enjoyed it. The trainer reviews (in English and German) rope types, works with a model to show basic and advanced roping techniques, and then gives each person hands on practice with the friend, loved one, or FB they brought along. Rope is also available for sale. Fun! I think there were about 14 people there when I was, but it was a dark basement and all those hands...
Kidding on that last part!
The trainer actually organizes these events regularly (ours was in a Kreuzberg bar) so I can either pass along word of the next OR arrange one for Toytowners only in April. Anyone interested?
Um, if just replying to this thread makes you skittish, please feel free to PM me directly. ;-)