Mathematically Themed Cushion covers

I recently had a request (well, really, a casual suggestion) for cushion covers with a mathematical theme. I liked the challenge. It took less than 2 minutes to decide this was not an embroidery challenge. My friend Margaret embroidered a fabulous Fibonacci spiral that hangs on her wall - which is where it belongs. A cushion is another matter.   

Suitable fabric was not easy to come by. Only 2 places in Adelaide were likely to have any, so I headed to the most likely one, Tricia's Discount Fabric. Sure enough, she came up with the last metre on a roll printed with mathematical formula

and, after a bit of a hunt,  this one printed with geometric shapes overlaid on one another. I confess to really liking this one.  I also visited DK Fabrics, the only other likely source, but they had nothing.

My Internet searches revealed one source of fabric likely to fit the criteria, Spoonflower, in the USA.  I was reluctant, but I wanted the fabric, so I ordered. It took about 2 weeks to arrive, but arrive it did - and even fitted into my letterbox!

I wasted little time. Fortunately I was just finishing the Bishops Bag, so was able to buy matching zips and to make the cushion covers within a couple of days.

Again, 1 metre of each made 4 cushion covers.  

I hope they prove interesting, easy to take care of and comfortable to rest on. I had no idea such fabric existed! It proved a fun challenge..