Arduino Sprite for Ardublocks?

I have been working with ArduBlock in education for a while and still think it is the best thing out there for a graphical interface. The new CodeBricks for Arduino (cb4arduino) also looks very promising.
I would love to put a sprite of an Arduino in either one of these and be able to run in a simulation mode. Any idea how I would even get started on a project like that???

I have looked at s4a which does have a sprite of the arduino, but find it to be very unreliable, and cumbersome compared to ardublocks.

Any pointers on how to get started in making a sprite or silimar graphical representation of the Arduino and controlling it in a simulation mode from Ardublocks would be appreciated!