im working on project currently that hopefully will make the process of making grayscale (or black and white) sprites easier. the program will have a pallette similar to ms paint, where you can choose your shade of gray. it will have multiple sizes of brushes ( + and - keys) and hopefully will have copy and paste capabilities. and layers! it will have layers just like in photoshop, so you can delete some of an image without having to delete it all. finally, you can save your images in more than the 10 pics.