Replying to delamination

I should hav seen this coming but my lines (2001)are delaming at the tip (well just one). I tried gluing it but it cannot hold up to the strain of the tip flexing. the shop said that since ive riden them after they started to delam, that theyre fucked. I am getting new skis next year but any ideas for how to fix them for the rest of this season? Dont say duct tape, i looking for ideas that will last a month or so. If i put a rivet or something in then glued it do you think it would hold? By the way i tried 2 times gluing once with epoxy and the other time with contact cement, both times lasted about a half day. Any Ideas?