I started this project in July 2015. The fabric is from a line called La Petite Ecole by French General for Moda. This is from my disturbingly full collection of charm packs that I built up over a few years of belonging to the charm pack club offered by the Fat Quarter Shop.
Cottonseed Glory. The shop is full from floor to ceiling with bolts of fabric and wonderfully helpful and supporting staff. If you're in the area, I recommend you drop in to say hello and pick up some fabric. Their buy-10-get-1 fat quarter deal will be my downfall one day.
So Fine 50 from Superior Threads.
Want to make your own tumbler quilt and join a great community of makers? Check out Bonnie Hunter's blog Quiltville and her Tumbler leader-ender challenge.