I got very nervous about doing this once I had started everything - she had a gift registry for the baby but I wanted to make something instead of just clicking away to pay.
So I made a 42 inch play mat, very similar to what was on her list:
My son helped me make a quarter circle template with freezer paper that I used to cut the circles. (I cut the front and back, but if anyone else does this just cut one of them, then pin the batting and backing on that and use that fabric circle as the template.) I used hi loft polyester batting. Using curved stitching made it very fluffy! The 2.5 inch binding was applied with a walking foot on my Brother. It was about 3/8 inch on the back and also when it was brought around to the front. I folded it at the beginning and then just tucked in the final piece when I came back around. This made it very simple to finish.
Cutting circle for play mat directions: https://www.libbyslifestyle.com/2016/11/padded-baby-play-mat-tutorial-quickest.html
I had some left over towel, so used my 12.5 inch template to cut two squares. Used that saucer to shape the corners and added the binding!
Two days before the event I got so upset thinking I should have just clicked to buy something, I had myself in tears. But got myself together so I got some new clothes, had my nails done, and found these clear bags (supposed to be to put gift baskets in) to put the gifts in.