I used a white batiste fabric with tone on tone stripes. Purchased from fabric.com. (This fabric is no longer available)
The pattern used was Simplicity 2457 view D in a 6 months size.
Both the bonnet and jumper fit perfectly but the baby shoes were too small.
Unfortunately we live across the country from my precious grand baby to get a accurate measurement for his little feet. A Sublime transfer pen was use to trace the shamrock design onto the same batiste fabric fabric and then I just hand embroidered over it.