I made this cardi for my daughter 30 years ago, now I’m making it for her daughter.
A soft colourful cardigan in 3 sizes to take you through the summer. In the wonderful Paintbox Baby DK, I love it that you can buy so many colours in 10g balls to do colour work

3 stitch bobble - With contrast yarn, knit, purl, knit, into the next stitch, turn and knit these three stitches, turn, and using main colour, knit these 3 stitches together
You could increasing the size of each bobble it will not effect the size of the pattern, although it will take extra yarn to do this. I did try the larger one but it seemed to be too much for a small baby cardigan