Re: courtesy flags
With the stick flags we run a light line through the sleeve where the stick goes, then we put a few stitches through the flag and line. Not sure that you always could buy a flag conveniently where you check in. I think we bought from United States Flag Store, good selection nut there are still some you cannot get easily like Cook Islands and Montserrat. We bought some extra red and blue British ensigns and cut and pasted (well actually sewed) to make some flags.
Heading back to Lake Ontario for this summer. Relatively few stops along the way from Grenada. Martinique, Guadeloupe, St. Martin (must have something to do with the French food), then Bermuda, New England and up the Hudson/Erie Canal. We were going to go via Newfoundland and Labrador but June remembered that one of the kids is getting married this summer - details, details!