Because of the cushions needed to be highly water resistant, I made them from 450 denier coated packcloth. Here I am putting in the zipper. I used a teflon coated zipper foot (and a seam guide). For some of the steps, I could have used the regular foot, but when sewing on the coated side, it was important that the foot not stick to the fabric and cause skipped stitches and the like.
Once a hole is in the fabric, it is a permanent hole in the coating, so I couldn't take out stitches and resew seams.
The waterproof zipper. I could have possibly used a regular zipper, but I didn't want to chance it. And frankly, I couldn't resist how cool this stuff is! It is made similarly to an invisible zipper, in that the coils are on the inside. The waterproof coating on the outside of the zipper is really thick and can probably be used in a lot of very wet applications!
I got all the materials at The Rain Shed in Corvallis. I shopped in person and ordered some things over the phone. The store is amazing and their service is excellent, which makes up for not being able to order online! It's like a DIY version of REI! You want to sew your own tent? You want to sew your own waterproof cycling gear? You need fireproof fabric? Reflective tape?
Buttons, gadgets, and gear? Check! They've got what you need!
These are two finished cushion covers, waiting for their foam inserts.
But the best part of the project was some hilarious patten testing with my mom, sitting on the cushions and pretending to have a baby. I had both my boys at home with Ellie and my mom had my brother at home with a midwife, so we had some great bonding and some really good laughs!