A port of the original mod by Jokerine to SSE.  All credits go to her for the design and implementation.  Many thanks for allowing open permission to port this over.  This adds a little shop in Solitude to buy supplies for animal friends or companions and is mostly for role-playing and/or Immersion.  The original mod can be found here:

Bau Pet Supplies for Skyrim
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The .esp has been saved in form 44 in the Creation Kit and no cleaning was necessary as Jokerine did this with TES5Edit on the original mod.  All meshes and textures have been processed through the latest version of NifOptimizer for compatibility with SSE.  I tried to convert this about a month ago and was getting a CTD going into the store.  I had a heck of a time trying to figure out what was causing it and after a little bit of digging,  I discovered a texture file that was the guilty party.  After modifying it in GIMP,  NifOptimizer reported that no issues were detected.  So users should have no CTD's at all.

Important!  Please do yourself a favor and leave any Followers and Companions outside.  The store is really small and if you have a lot of Followers like me,  it will get really crowded and Claustrophobia will set in  LOL.  You will see what I mean when you enter.  This way you can shop and look around at your leisure without your sidekicks getting in the way.

The only version that I converted for SSE was the Hearthfire edition which adds Straw to the Vendor's inventory.  Converting the non-DLC version was redundant.


Here is the description by Jokerine from the Oldrim page:
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Hello everybody! This little mod adds a tiny, tiny pet shop in Solitude, to the left of Angeline's Aromatics, where you can buy clutter and food for your animal friends.

The file has been cleaned with TES5EDIT,  is fully navmeshed and has no scripts, so it should be safe for everybody to use. Still, you should always make a backup save before installing ANY mod, in case something goes wrong.



                                                                   == WHAT ==
As stated above, this mod adds a very small pet shop where the player can find assorted pet-themed clutter, food, and perhaps a pet or two. I attached the building to Angeline's Aromatics, in a small corner that, as far as I can see, has not been touched by any big mods that I am aware of.

Most of the things you can buy are misc items, and they range from pet beds to collars and toys. A few consumables are also
available. I am not going to make any patches for needs mods, because who wants to eat pet food, really? Yuck! I'd rather starve to death...

The merchant here works all day, and has what I feel is a decent amount of gold available for bartering. If you have Hearthfire, he has a chance ofselling straw, too, but in that case you could just use the Hearthfire version so he'll be sure to sell it alongside some crafting materials.

                                                                   == WHY ==
Because I wanted to celebrate the two-year anniversary of my Bau Pet Supplies mod for Fallout 3. I have made many mods since then, but that one remains one of my all-time favorites and holds a dear place in my heart.
The chew toy I included here is basically the same as the one from that mod.

                                          == KNOWN ISSUES AND COMPATIBILITY ==
This mod should be compatible with other mods that edit Solitude, as I am using several (including all of my Solitude merchants) with no problems.
But, if you find some issues with other mods you may be using, please let me know so I can list them here.

I have confirmation that this mod works perfectly alongside Dawn of Skyrim (full pack), the Skyrim Romance Mod (adds a new shop in town plus a party area and ballroom by the Blue Palace), Holidays and, conveniently, Pets of Skyrim.

Some of the new items have finicky collision, and may sink through the floor or roll around. I tried to fix them, but just so you know, sometimes they may require some roughhousing in order to stand upright. Lifting them above the ground and dropping them seems to work.

You cannot move the large pet bed once you drop it. This is an issue with the mesh that I was unable to figure out, so you'll have to add it to your inventory and drop it until you get it where you want it to be. At least this way it won't get kicked around by NPCs.

The new consumables are compatible out-of-the-box with RND - Universal Compatibility Patch. I will not make a dedicated patch for it or any other needs mods. If you want to make one, feel free to do so. You are welcome to send it to me, if you'd like to have it uploaded here -- with credits, of course. 


                       FOR THE FULL LIST OF CREDITS, PLEASE CHECK THE "CREDITS AND PERMISSIONS" TAB

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Credits:
Jokerine:  For the mod and allowing open permission to port.  Big thanks!
bchick3:  For making a good guide for how I learned to port mods over to SSE
Bethesda:  For making Skyrim SE
The Nexus Community:  For a great bunch of supportive and awesome gamers and authors that have made playing SSE fun!  Thank you.

Changelog:
8-25-2018:  Version 1.0     Initial release for Skyrim SE

Jokerine has stated that all of her mods are free to use and can be converted and modified without permission.  She has also given open and free permission to port her mods to other games including Skyrim SE.  After a discussion with a moderator,  we both felt it was a good idea to post alink to Jokerine's profile stating that this is so.  If you would like to view this yourself,  her profile can be found here:

Jokerine's Nexus forum profile


My other ports from Jokerine:

Underwater Treasures SSE
Cake O'Clock - Hearthfire Bakery SSE
The Honey Spirit - Liquor Shop in Solitude SSE
Amulet of Auriel SSE
Seedy Merchant SSE
The Mystery of Icebound Crypt SSE
Hamvir the Ghost Follower SSE
The Golden Hen Restaurant SSE
Freshwater Cave Player Home SSE
Harvestable Elves Ear and Frost Mirriam SSE
Mushroom Soups SSE
Filled Pots SSE
Frostflow Lighthouse Player Home SSE
The Bloody Tankard SSE
Gourmet Gourds SSE
Buyable Decorative Daedric Shrines SSE
Chicken's Bounty Player Home SSE
Chaurus Egg Cooking SSE
The Merry Snowberry SSE
The Golden Rose SSE
Ironback Hideout Player Home SSE

My other ports from Oldrim:

Campsites in Skyrim SSE
Lumberjacked SSE
Psilocybin Mushrooms SSE (Psychedelic Shrooms)
Reading List SSE
Hidden Treasures SSE
Freshly Picked SSE
Dwemer Fairies SSE
Exposed Armors - He-Man Outfit SSE
Freshly Ground SSE
Alternate Book Fonts SSE
Collect Ivy SSE
Shields of Skyrim SSE
Tempest Snow Elven Sword SSE
Archmage Necklace SSE
Golden Egg Treasure Hunt SSE
The Drunkards Drinks SSE
Breezehome Basement 3x2 SSE

Disclaimer:
This mod is not to be sold under any circumstances.  Jokerine made that very clear in her profile.  If you see this mod being sold anywhere,  its an illegal copy and should bereported immediately to a Nexus moderator.    I am not the original Author,  Jokerine is. 
If you want to show appreciation,  please consider endorsing the original mod.  If you like this mod,  please endorse it.