I read the Richard Scarry book out loud at least three times - it's hard work! Each drawing is labelled and the pages are crammed with drawings. He seems to be over finding Goldbug on every page and into announcing "Dingo Dog!" excitedly when he appears, which is then followed by "Officer Flossy!".
I used a very simple Burda pattern and the pjs took about 1.3 metres of fabric and a few hours of my time. Easy peasy. I imagine I will be making more pjs in the future!