I think that ‘for sale’ icons and buttons would be helpful in the following situations:

• You're browsing the LorWolves for sale, and see one that catches your eye. You click view and are taken to that pet's page. You decide you want to buy this wolf. Currently, in order to do that you have to go all the way back to the flea market and buy it through there. I suggest that they add a ‘purchase’ button at the top of that wolf's page, telling you what they're listed for and allows you to purchase more conveniently.
• You're in another user's den and admiring their wolves. Currently when you are in someone's den (or even your own), you have no idea which wolves are for sale, if any. I suggest that they add a little icon underneath the wolf (where the cooldown icon goes) to show that they're for sale, and possibly throw in a little pop up that tells you how much they cost.

Yes please, this would be wonderful!

Support!

Support! Would just be super convenient xD

Full support! This would be an amazing feature - even just a way to tell if a wolf is for sale from its page.

100% support~

support!

Support please!

Support!

Support

Support!

Being able to buy from the wolves' page would be really helpful as I like to browse all wolves for sale and keep ones I'm interested open in different tabs before deciding which ones I want to buy. It's not usually difficult to find them again by their name, or by remembering which page they were on (though this may change as the site grows and more wolves are put up for sale), but it definitely would be more convenient to be able to purchase right from their page.

A visual indicator in someone's den that a wolf of theirs is for sale would be very nice too!