Open Peeps - A hand-drawn illustration library.
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Humaaans - Mix-&-match illustrations of humans with a design library.
Ralpha Image Resizer - High-speed image batch conversion tool
Blush - Illustrations for everyone
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats