Hi Margaret, the cost of postage is always a problem when sending squares, especially from the US. I assume you have contacted Helen Flagg at CLM in Houston for tips on fundraising. You could also chat with another forum member, Gwen Boese in Nova Scotia Canada. She is a member of the RJSK(River John Square Knitters).
Hope this helps!
Yes, Helen advised me when I first started 6 years ago. She was very helpful. I will contact Gwen. Thank you for your response.