I used Inkscape to extract some logos and mix them together for the thread Custom Dice on the Burning Wheel forum.
These are all derived from logos used for the Burning Wheel books. All enquiries should be directed at the artists in question.
The wheel is from a Burning Wheel PDF, the flames are extracted from the Character Burner cover using the Gimp. Conversion to vector graphics and arrangement was done using Inkscape. SVG source is available via Email (firstname.lastname@example.org).
Both Gimp and Inkscape are Free Software.