Let's use up some of the Bosses bandwith 

 Winter Time Fun 
 
Please post any if you have any 

  Below is the start of my ice fishing Tip Up or Tilt collection used for ice fishing in NewEngland 
 
The best part of these tipups is how the heck do they work ?
 
First up is a very rare "Wooden" pop -up , not sure how it works , there is a spring on the inside and a hole on the outside and a small screw , maybe missing a part or two 

 Have yet too see another one made of wood