I drew these guys with a Pilot Custom 823 FA and Platinum Carbon Black ink. The FA nib has a good drawing width on watercolor paper - one of my favorites. It's a soft nib but I don't use the line variation, just some nice shock absorption with each downstroke. The Carbon Black ink is out-of-this-world good, though being pigmented I fear keeping it in too many pens.
The man with a vast red hat met a flower on the pad and asked, "Are you my dad?" The flower said, "No. I'm not the one, but I'll pretend I'm your dad if you'll pretend you're my sun."