I actually have haha. Ducttape was probably the most effective. You're going to have to keep reapplying the tape to keep it really tight though. Superglue did absolutely nothing to stop it for me but I haven't tried the industrial strength stuff so that may be a better option. Worst comes to worst and If I had no warranty, I would just say screw it and go the epoxy route...Just updated my reading ...
Having bought my LCD1 used, no warranty.
At the time it seems ok, but I'll have to check the shown "scratches as first sign of incoming fracture".
In case they would show, did someone try a preventive action, by gluing ? Using tape ? Another trick ?
The technique recommended above by ikaruga24 is probably the simplest preventative measure. I haven't done it myself, still waiting for my RMA to come in, but it makes sense given the situation. There's a lot of stress being place in that area of the headphone, especially when you're pulling them off, so you need to counterbalance it somehow.