“This lesson from Noesis Interactive will show you how to begin creating custom props in the Softimage/XSI 6 Mod Tool. Learn the basics of modeling, texturing, and rendering while creating your own time-bomb prop. After following this tutorial you will know how to make your very own video game assets.”
http://www.cgarena.com/freestuff/tutorials/xsi/noesis_xsi/dynamite.html