What we did for our boys who earned the Conservation badge was to sew it on their right pocket (temporary patch pocket). We then allow the scouts to wear another activity patch in a plastic holder over the top of it (on the button). Probably not the best solution, but it does seem to work. Some even wear their Progress towards Ranks on top of that. So much stuff on a button. Many boys even have the Whittlin' Chip patch sewn right under the conservation badge, yet still on the pocket. Creative moms, I figure!
Now I'm not saying it's right, but it really isn't wrong (like the one cub we have whose parent insists on sewing everything all over his shirt--we're working on her!)
CA Scouter