Percolator - Percolator: the always fun, supremely unique photo app that is sure to surprise you! FEATURES:
PixBuilder - Free Photo Editing Software for PC
WidsMob Montage - Make stunning mosaic photos or montage shape with tiles, which supports both JPEG and PNG files.
showFoto - ShowFoto is the standalone image editor of the digiKam project.
Mosaic Creator - Mosaic Creator is professional mosaic tool. You can create your own picture mosaic.
Fotografix - In addition to being totally portable, Fotografix has a ridiculously small footprint.