Do you still have your birdcage? Isn't it amazing what you can invent? I feel sorry for the ones who think they have to buy every ruler, template and notion on the market just because some magazine tells them they will need it!
My only income is Social Security, but its amazing what my third bedroom may have that I can use!
I'll bet you enjoy your bird cage better than any that would cost $100! Necessity is indeed the mother...