A small A wanders your Mac desktop, runs from the cursor, complains when you pick it up, and every few seconds leaves a real PNG right where it squats.
Get it on the Mac App Store$0.99 · macOS 14 or later
Each drop is a PNG on your Desktop, signed on the pile. Clean up removes them all and nothing else.
From one second to ten minutes between drops, up to 2000 files, and a walking speed slider.
No account, no network, no data collected. It asks once for your Desktop folder and once to talk to Finder.