I don't know about the whole condom idea. I've tried to put water in one and I just don't get it (especially from shallow water sources). I choose to just leave that out. I carry a water bottle with me in the woods for routine use, and that would become my survival water container. Otherwise, I would have to improvise something. Someone posted here about using a mylar balloon, and that sounded like an idea with promise to me.<br><br>By the same token, I stay away from dental floss and fishing line for general tying. I've tried knotting it in a lot of different ways and I just can't get satisfied with it.<br><br>As for the button compass, yes, those zipper-pulls can be a convenient source if you don't want to mail order one. You can break apart the zipper pull or just grab the compass and pull it right out with pliers. The one I did had some super tape under it.<br><br>I noted that one Boy Scout troop in particular doesn't allow it's Scouts to bring lighters on camping trips. Does your troop have a similar restriction? Is that a BSA regulation? A mini butane lighter would be a good thing for a responsible Scout to have as survival equipment, if allowed.<br><br>Good luck to your Scout with his WS merit bagde. That's one I hold myself.<br><br>