Luthien Thye is a wonderful altered art artisan on Etsy.  She makes unique wearable art jewelry from scrap material whenever she finds spare time.  Her birdhouse pendant below is sweet!

Many people have asked her how she makes the birdhouse so she kindly shared the no solder tutorial on her blog.  You don't need much metal smith skills as it is really easy to form the case.  The sky is the limit as to what you can do to embellish the birdhouse. Use metal snips to cut thin metal and file the edges smooth.

I would either use glue or if you can manage it, rivet the bottom fold.

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Original Post by THE BEADING GEM
Jewelry Making Tips - Jewelry Business Tips