Software and inspiration for your 3d designs!
www.blender.org - free and open source animation software, can also be used to design and export 3d models
www.printcraft.org - Minecraft server that exports 3d designs built in-game
www.sketchup.comwww.thingiverse.com - for inspiration or downloading
designs that others have made
www.tinkercad.com - web based CAD, free to use but
www.wings3d.com