Here is my image:
Issue I think students will have is discovering that if they are off by one number (type 7 zeros instead of 8, they will get unexpected results from that point on in the image as the rest of the numbers will be "off"). There may be frustration with the students initially as they get use to the tool and how it behaves. Once they begin to see the pattern of their input, they will be willing to experiment some more. I will encourage them to save their input often in Notepad, etc. That way, if the save doesn't work as expected or our lab computer's memory gets wiped (which the district does on a regular basis), students will still have their file on their personal student drive.
I also liked the ideas shared from last year to use a program for students to upload their favicons and then have a "gallery walk"