I was looking through the shaders on this forum (looki's shader links are all down btw) but could not find something that would suit my purpose.

All I want is a simple shader or technique that would "reflect", without scrolling, some kind of sky image. I'm thinking like the old 2.5d game sky parallax effect like in Duke3D but in a puddle, from a bird's eye view. I can't find a good game example so here's some random images: