That tutorial recommends using a "water soluble fabric marker" and shows something like a "Marks-B-Gone".
For a much more economical marker, consider using Crayola WASHABLE school markers, but only if you plan to wash the quilt after it's quilted.
There is much talk and info about these markers here: [url]forum/i-need-quilting-related-advice/4259-crayola-washable-markers[/url]
Margarita, that would be one heck of a road trip!!
Actually, I have 4 cousins who were born in Caracas when their dad was working there with the Gulf Oil Company! Small world, huh!