With 2 weeks' notice (and on the last day of the school holidays), the eldest finally decided what he wanted to wear for year 12 "muck up day". And along with making a costume for him, he asked me to make one for a mate too!
So it was time to do some research, taking lots of screenshots, drawing sketches, looking at YouTube, and then taking my ideas into Rathdown Remnants to find some fabric inspiration!