Rasterbator - Wall art from any image
Posteriza - Use POSTERIZA to design your own big posters and signs from any digital photo with your home...
ZebraTRACE - ZebraTrace is a simple tool to trace bitmap images into a pattern of curves with a variable width.
Block Posters - A free poster maker to create massive wall posters from your own images! Free!
PosteRazor - PosteRazor is a powerful and lightweight program that cuts a raster image into pieces, allowing you to take a print and assemble them into a poster.
Mindcad Tiler - Print a PDF Page on Multiple Sheets of Paper.