Ask HN: Hacker Project Sharing

A couple of weeks ago I got this started creating a photo sharing mobile site for lego projects. With it, people would be able post photos from their phone, discover others' creations, and share (retweet) what they find. What a gas! Then this MineCraft + Lego thing came up, showing that lego is doing perhaps something quite similar.

Now, this idea certainly has potential. It could apply to anything hacked together (physically, that is), and could go on to commerce of said hacked items. Sweet! Sell what you make!

Where what other potential markets should I look in to? Is this a foolish idea or a fantastic one?

-- brickbook.co