It's really quite simple.
I have a bunch of rare eggs I'm not interested in keeping.
You pay me to hatch them (a small amount, depending on how rare they are -roughly 2,000-) then depending on the outcome you can either choose to have me name then buy the creatu from me, or ditch the creatu and get a 500 TU refund.
The eggs I currently have:
Ardur (2)
Aukira (2)
Chimby (3)
Draqua
Kayoki (2)
Malal
Mirabilis
Murren
Sirleon (2)
Skaldyr
Veram
Zaphao