Asking me here is totally fine, no worries! It means a lot to me that you've been enjoying the sippers and mounts QwQ Typically customs of the mounts (and other MSS, which can be viewed here) can be purchased alongside a sipper custom as a bonus. They are also a semi-open species though, with the only barrier of entry being that 1 sipper (or other playable etherheim race) must be in one's ownership first. 

I'm unsure if I would do pet/mount customs separately from a sipper custom at this time, but it's something I may consider, especially if the pet/mount is being created to be attached to an existing sipper (ex a sipper owner contacts me asking about custom pets or outfits for the sipper they already own) 

Also thank you so much for the kind words!!