I create mockup videos for site designers (off-fiverr). I use after effects to display sites they’ve built. I haven’t seen anyone offering that on Fiverr, but it takes a while if the designer doesn’t send me images of the site from desktop or laptop, phone and tablet, then I have to do images myself. I don’t see a way for me to scale that down for the fiverr-market, but it’s something to think about.