Work in progress images.
Letting dripping paint dry. I held the pink I-beam vertical and poured some gray/green liquid paint in the pot then quickly tipped the I-beam in the position you see in the image and let the paint flow out and drip down. I put tape on the bottom edge of the panel and elevated it so the paint would run off the edge and not under onto the bottom edge of the panel.
I used a section of ruler I got from the DIY Store to hold the I-beam away from the wall so it won’t stick to it while the paint dries.
I used my trusty iron bar to keep panel from falling over while the paint dries.