Yep, I already checked our farmer’s markets. They’re all restricted to local meat and produce or local crafters only. I don’t make my own products, so they would turn their noses up at me. 
(Meant affectionately as I adore shopping at our local farmer’s market.)
I’m sure that this place wouldn’t work for you, product placement and all, but I think it might be the sort of thing you are looking for. Its a large building with a very well-known candle maker that also has other rooms that arts and crafts venders use for work and showroom space. A goat milk soap maker I know has a shop set up there and it seems to work very well for her.
You might be able to look through this webpage to get search words to help in your search.
I mentioned giving a cut to the location so it doesn’t sound like pure sales, but I doubt pet owners mind being sold to. Once you work it out it would be a good opportunity to franchise others around the country to do the same thing. I just checked your website and saw a lot of new stuff on there, last time I looked I think was just after you set it up. I’ll bet those puzzles will sell. Unfortunately my Best Friend passed away last summer but eventually another dog will find me and I’ll know where to look for ways to entertain him.
Small business owner here.
My computer shop was moved into a small office space that cost about $425 a month. Communal restrooms, not a ton of parking, but enough to get by. I have since expanded into two adjoining occupancies. I have seen little 10x12 offices for as little as $250/month including utilities.
There are definitely some synergies to be found in working with rescues and animal behaviorists and trainers. I’m always scouting those and working with those that agree. I have promo codes that I’ve sent to four pet rescue groups that give their people discounts and also flag their orders so I can send a donation back to the group. It’s not as profitable for me, obviously, but I’m still in the establishing-my-market phase of business. I also just flat out donated (without anything in return other than a tiny bit of publicity) a percentage of my April sales to three greyhound adoption groups (it was Adopt a Greyhound month, yo!).
I love the interactive toys and am toying with the idea of dropping other products like the beds and focusing only on interactive toys. When talking with potential customers, I keep hearing some things over and over, like “oh, my dog would chew that up in ten minutes”, “my cat would get bored with that quickly”. That indicates to me that some customer education would be beneficial*, so turning my in-person sales booth into an educational seminar/hands on demonstrations/play zone is the way to go. That would also be a good value-add to separate me from Amazon/Petco/Petsmart.
- The interactive toys are sort of a new paradigm: you don’t just hand it to the dog and say “have fun”. It’s more like taking a ball into the back yard - you have to play interactively with the animal. If it takes the dog 30 seconds to clear all the treats out of the game, you just reload and go again. I do this with my dogs in 15 minute play sessions, then put the game away, and when I get it out again another day they start bouncing around in happiness. I don’t think animals get bored with social interaction, and food-motivated animals never get bored of opportunities for treats!
Yes, I’ve investigated office space like these also. It would solve the issue of limited inventory storage space in my house, but it can’t be used for retail space. It would be too hard to advertise enough to bring in sufficient foot traffic. Unless I set up some formal classes or seminars or something…
My wife got one of those Squirrels in a Stump things for Blackjack. The box said it would provide hours of fun and she was so disappointed that he tore it apart in minutes that she ran right out and bought him another one 
LOL! I feel so bad when that happens. I sold a Mighty Dog toy to another vendor at an event last summer. The next day she told me her dog destroyed it in an hour. She didn’t ask for a refund, though. That’s the problem with the types of toys you just hand over.