i was thinking about building some for my place because we have quite a bit of blue birds and was wondering if anyone else would want some. i will probably have a table at the extravaganza this weekend and was just curious if it would be worth to build a few to bring over. it will be a basic design that i have used forever and i dont see them being over 15 bucks. maybe 2 for 20 or something like that. Any interest??