This guy designed and built a Canon EF Mount for his Game Boy Camera with a 3D printer and used it to take a picture of the moon (among other things).
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[img:33qirer7]https://pbs.twimg.com/media/Dev5aTkUcAQmaru.jpg[/img:33qirer7]
[img:33qirer7]https://pbs.twimg.com/media/Dev5aTqU8AAiXgG.jpg[/img:33qirer7]
Read the full article [url=http://ekeler.com/game-boy-camera-canon-ef-mount/:33qirer7]here[/url:33qirer7]. I took the images from a [url=https://twitter.com/Stammy/status/1003169578099150850:33qirer7]twitter post[/url:33qirer7] sharing this article.