This is my Baby Budget dk (8 ply) Onesie knitting pattern.
This fabulous onesie is cheap to make. I made this one with 2 x 100g balls of cheap acrylic supermarket yarn.
Its worked flat on 2 straight 4 mm needles and can actually be made in any dk (8ply) thickness yarn of your choice.
The knitting pattern provides full written instructions for 5 sizes XS( 0-3 months), S (3-6 months), M (6-9 months), L (9-12 months) and XL (12-18 months) and there are lots of step by step photos to help you along the way.