I did.....
The past couple of weeks, I've been looking online to find different birdhouses to build. I have lots of sketches about future designs.... just don't have the right wood yet. But what I did have was some beautiful acorns from Minnesota:)
**remind me later to thank Kim from http://flowerkim.blogspot.com/ again!!
I've seen a few in real life scale made out of wood and wondered how hard it would be to turn a regular acorn into a miniature birdhouse.... So, I talked the bf into cutting the top off of one~ which was more difficult than we thought it was going to be....we cut 4, I got one birdhouse outta the deal!? Oh... And before we/he cut it, I buffed it up with a dremel attachment to make it all shinny. And yes, I used just the attachment, I was to lazy to get the dremel out, lol!)

I gutted the insides, and then went back with another dremel attachment and tried to scrub out the sides. Then I used a drill attachment and made a hole in the front. I would recommend not being lazy, and finding your dremel... My poor fingers are killing me today.