1) Eagle Badge for many of the above reasons said 
  
2) Northern Tier badge (My standard temporary patch.  4 treks, number 5 coming when my son is ready for High Adventure) 
  
3)  Polar Bear Camping.  As a service project we were cutting Christmas Trees.  For the Polar Bear badge it cannot rise above freezing.  We did this under a burn ban, so no fires and pretty windy conditions. 
  
Hon Mention:  Original OA flap.  Manu Lodge, just a really cool patch.  It might find its way onto a uniform shirt again.(This message has been edited by bedgraynexl)