Sponsors can be sent in whenever you would like, but will not be "redeemed" in every clutch. Usually I save them until I want to hatch a clutch and they aren't enough Candidates, but I'll try to use them sparingly and may come up with a persona to match them with. The rules are simple enough.
1. Please have some sort of adoption agency/website like Trandiok Glacier. No random pages. But if you show me a URL that's questionable, I'll decide.
2. Please e-mail me sometime/when I ask for a URL. I'm pretty bad at this, so I'll be lenient, but I'd like to have a URL for the records page eventually.
3. I may come up with a persona to Bond with the dragon. You will then have both a persona (with a nice stat sheet) and the dragon.
4. Erm... I think that's all. Have fun!