i did it. It's RandomHentai, except e621.
That's really it. Do I need to say any more?
At the time, I had absolutely no idea how to code lua. The changes made were so insignificant and yet it took way longer than expected. I am aware that occasionally no image shows up. If someone could give advice that would be nice, but for now, you can press cross or down to just load a new one.
Uses e621 as a source.
L Trigger/R Trigger - Save current image (By ID)
Up/Triangle - Auto next timer toggle/reset
Right/Circle - Increase timer duration (up to 60 seconds)
Left/Square - Decrease timer duration (down to 5 seconds)
Down/X - Next image