Isn't that what pretty much every side project is anyway? Unless you're an active OSS developer the chances of any of your projects being worthy of judgment is pretty slim.
I've got 10-12 repos on github I can show you...they're all half baked weekend projects that I did just to tinker with some new technology or idea I had. None of them are production quality, and most of them I'm appalled at anytime I go back and look.
neither does that 1 wk coding exercise you made me do unpaid which I'm pretty resentful of.
If you have an open source project and want me to fix a couple bugs and do some reviews to see what kind of work I do, thats pretty fair (Rethink asked me to do this, I couldn't afford the time, but I thought it was a good plan)
Otherwise, I really don't know what you expect to learn
Honestly the code review isn’t for the obvious rock stars. Anybody can pick them out. It’s for the sleepers who might not get a fair shake but who can deliver.