Hi there!
Yes! I'm with a free slot to an OC open! But to participate you need to have a DeviantArt account cause the original post is there!
It's simple: just comment there with the link to your OC and you're in!
The original post is here:
http://gray-wolfy.deviantart.com/art/Free-Art-1-slot-OPEN-559072103
Read the rules for more info. Good luck!