Diorama Ideas/Furniture

My mature tiny gang, who are the same scale as your Momonita, currently have two living room spaces set up in an Ikea shelving unit in my bedroom. However, I've made more than I've purchased from thin scrap wood and cardboard. Their sectional and couches were made by me from cardboard covered in thin furniture foam and fabric. I made seat cushions by wrapping inch thick pieces of foam cut to size in fabric and sewing it together. They look pretty good and can support multiple dolls sitting on them.

If you are more comfortable with buying premade items, I have a few of those, too. My gang has a living room rug that is actually a fancy place mat found at a thrift store. I have a cell phone chair from Pier 1 Imports that works well for them. It was bought years ago so I don't know if its still available. Here's one of my dolls sitting in it-

 

I ordered a few pieces from BonzanaStore on Etsy. The furniture that I chose is either wool or press board, but much nicer than plastic. It was all assembled even though I chose unfinished.
I just started remodeling a Barbie folding house and have a folding cottage on coming that I hope to turn into a cute solarium greenhouse space. do you have any photos of your finished project?

 

I personally enjoy Gloria Doll furniture from ebay. its all knock off Barbie furniture but its knock offs of barbie stuff from the 80's and 90's so its actually pretty quality! it comes unassembled which is great for spray painting it into different colors/ fancier. Heres a link (Gloria Doll Furniture for sale | eBay)