homemade tipup designs?

[ICER12]

just wondering about any ideas for homemade tipups.
curious which are desings most popular?
thanks

[akoop]

I made a few about 10 years ago, just copied the basic design.  The only problem I had is that I used a piece of red cloth for a flag, when the cloth got wet or snowy it froze up and weighed too much for my spring design to lift.