The MathMap GIMP Plug-In

in GIMP mathmap droste Escher effect fotografía photoshop at 22.05.08

Instant.js (now with IE 6/7 support)

Instant.js 1.11 allows you to add an instant picture effect (including tilt) to images on your webpages through unobtrusive javascript

in instant.js images tilt shading shadow polaroid effect instant image unobtru at 26.06.07