Kaufman Fabrics made some cute dot and stripe fabrics that are bright, primary and fun, but I don't know where to find them now;
Dot and Stripe Delights Roll Up Robert Kaufman
https://duckduckgo.com/?q=Dot+and+St..._QL70_ML2_.jpg
here is a roll of the dots: I don't know...maybe both dots and stripes are on the same roll?
https://sarahsfabrics.com/products/d...robert-kaufman