I don't know how well this would work, but I did a Google search for "spray starch in Canada" and found a recipe for homemade starch: http://vickiwelsh.typepad.com/field_...-starch-r.html
. Maybe you can make a little bit and test it on a piece of ribbon and see how it does and if it leaves any residue.
One of the comments on the site says, "Thanks for the starch recipe. It means a lot to us Canucks after learning from Sharon Schamber that Canada is where the US sends all it's bad spray starch! I mean it was nice of her to let us in on it, but we were given no recourse of action...you've given us northern piecers HOPE. Thanks."
If it's possible to mail you some, I'd definitely mail you "the good stuff." We can't hoard all the good starch from you guys.