Some baby items are cheaper to make from scraps of fabric.
Diapers - I would have to wonder if they are not cheaper to buy ready made. I have never seen a pattern. The fabric might be hard to come by.
Better Homes & Gardens has all kinds of crafts & some childrens items.
I have made fabric purses with the pattern from online free websites. www.allpeoplequilt.com/projects-ideas/bags
They should have baby quilts. They are great to use for "tummy time".
Keep in mind that new mothers are now being discourage from using blankets & bumper-pads on infants.