This process is supposed to be sort of mindless and easy for me. I devoted a whole Stillman & Birn Alpha sketchbook to this type of creative practice and I follow the same steps each time.
Fewer variables = less thinking = more doing.
I start by picking a song or poem that I have memorized. I try not to pick the “perfect” poem. Catch a Falling Star featured in The Princess Diaries is one I use to unsuccessfully sing the kid to sleep. I put the blue tape down to give myself a visual edge to write up to. I picked up a TWSBI Eco with a Fine nib filled with Liberty's Elysium and started practicing my cursive.
Originally I was going to use my watercolors to do the stars, but I changed my mind and used little puddles of fountain pen ink. The inks were already in other TWSBI Ecos so I just twisted a few droplets out into my palette. I used from left to right: Sailor Ink Studio 162, Sailor Ink Studio 252, Noodler's Apache Sunset, Noodler's Rome Burning, Sailor Ink Studio 224, and Noodler's Dostoyevsky.
The apple page is the Johnny Appleseed prayer (Noodler's Rome Burning) with watercolors over top.
I did the stoplight a few months back. I wrote the little song:
won't you tell me where I'm going
won't you tell me when to stay
won't you tell me what to do Lord
it's been that kind of day
I sing it to the the tune that's whistled in Robin Hood.
What little songs or poems do you have memorized? Post it in the comments.