We have things like Kiel's Auctions, Vance's Auctions and Morey's Traders in order for users to have a chance to purchase customized pets without having to spend cash or GT, be it "Normals," or "Breedables," but we've never really had site hosted raffles.
My idea is that perhaps, same way all of the three above operate, on occasion, some pets can be raffled off to users that want to participate. I imagine that there could be some sort of entry fee for a raffle ticket, and each user may only purchase one ticket. Say an entry 50 or 100 KS, depending on the individual pet? Or whatever the Staff would find best.
Raffles can be considered "more fair," than the Auctions and Trader's Outposts, because the outcome is chosen completely at random, not by who has the most KS to offer, who can be online at a specific time to try to "snipe," a pet or who writes or explains their character ideas in a way that impresses those judging for the Morey pets.
It also gives users more freedom than Morey, since I know some users may argue that small pet descriptions on Morey pets can sometimes hinder their ability to place their own character on a pet.
Additionally, even new users, that may have less KS than other users, still have an equal chance to win something nice and shiny.
Aside from just custom pets, as well, perhaps some other pets that are considered "Rare," or "Sought after," could also be included. Things like generation Kuhnas, old war or event pets, pets that there are very few of in existence (like the Carol Mr. Wilson or Evening Lunafly, since there are only one of each on record), Wild pets, and so forth. Another option to that would be something like, "Winner chooses any Christmas Pet of their choice," and what not. Or pets that have also been seized from deleted accounts or pets that have been "lost," to events (such as the Thanks for Life Day events or to Morey as payment) could be also used in the raffles.
Something I also considered, which may help to inspire the artists to want to make pets to raffle off, maybe they could be awarded part of the KS earned from raffling off the pets, instead of it just vanishing off the face of Evelon forever? Or the KS could be sorted into some sort of "Bank," account for site, that can then be used as prizes for other contests or giveaways? (These ideas could be ignored, if staff or users don't like the idea, but I thought they would be worth mentioning.)