jLogo is a LOGO interpreter, featuring as many turtles as you want, color graphics, graphical text tools, and multichannel sound. It is available in French and English.
MacEyesX is a tiny app which features two big eyes
which follow any movement of your mouse, even when
you are navigating through menus. It is
essentially a clone of Xeyes for MacOS X.
A small yet versatile PHP debug API.
A tool that handles the basic administration of MySQL over the Web.