Where do I find fun and colorful fabrics and how do I possibly choose?
I often recommend people to do a quick google search for fabrics by color and prints. Also, use the word upholstery. As search results come up, click on the images of those you are drawn to so you can see more information. You can get really good search results this way. This can also be less overwhelming in some ways than walking through a fabric store, as you can narrow your search to only fabric types, styles, etc. that you want! When ordering online it is always a good idea to order fabric swatches before ordering the yardage you’ll need.
You could also use lighter-weight ethnic fabrics and blankets for projects, just be careful when using hand-embroidered pieces. These are not made to hold up when continually sat upon. If you use these materials, I recommend using them in areas like the outside back of a chair where there is less wear and tear. Etsy is a great source of ethnic textiles and other unique fabrics!