Inkscape- 3D Bowling Pin

See how to shade objects to give them a 3D look in this 3D Bowling Pin Inkscape tutorial.
http://www.penguintutorials.com/tutorials/inkscape/3d-bowling-pin

Inkscape- Mirror Image Symmetrical Shapes

Create great looking designs by mirroring images into symmetrical shapes in Inkscape with this tutorial.
http://www.penguintutorials.com/tutorials/inkscape/mirror-image-symmetrical-shapes

Synfig- Dump Truck Animation

Have fun in Synfig creating a dump truck animation. This uses standard rotate layers and a timeloop.
http://www.penguintutorials.com/tutorials/synfig/dump-truck-animation