The penguins crowded round a inexperienced wheelbarrow, wanting to see what was responsible for the clattering noise inside.
Moments later, greater than 1,000 colourful pebbles dropped onto their habitat’s pavement. Each pebble was hand-painted with a design, from flowers and rainbows to logos for Spider-Man and Scottish soccer groups.
https://www.washingtonpost.com/lifestyle/2026/03/14/penguins-pebbles-paint-edinburgh-zoo/