Draw the pistol in a vector program such as Inkscape or Illustrator.
Use the pen or pencil tool to draw the image.
Save it as an SVG.
related tutorials:
http://blog.videoscribe.co/how-to-make-a-svg-for-videoscribe-in-adobe-illustrator/
http://help.videoscribe.co/support/solutions/articles/1000033714-create-your-own-images
Detailed tips for Making SVG Images Draw Well (2017 update)
If you are asking something different, you may need to make the question more clear.
jeimy moreno
mil tema es de como se puede realizar una pistola que lanza aritos de humo muy facil rapida y con solo tres materiales