We are a suburban high school located 20 miles north of Houston, Texas. I work with 60+ students who are eager to exchange cards with international students. We could exchange a list of first names only of the kids and perhaps send an initial mass email of a letter of introduction from each student and match them up.

Contact back if interested.

Hi Kate,

I teach 4th grade (I know they are younger than yours), but we could exchange 24 postcards with you if  this helps. We are from sunny Florida. Please email me at sitsa1998@epals.com   if you are interested.

Thanks,

Sia

I have 55 students in grade 9 here in South Korea.  They are both boys and girls, and are studying English as a second language.  We would like to exchange postcards with other students of similar age anywhere in the world in English.

Our plan is to exchange names before we write the postcards.  This way your students will receive a postcard personalized with their name sent to your school.   In return, we would ask that the students to whom we've written a postcard, write back!  :) 
I would like to keep it simple and easy, so all those students who have written a postcard receive a reply.

We are hoping to connect with another class (or classes) sometime soon, so we can complete the exchange before Christmas, if possible.

Do you think your students would be interested? If so, please contact me, and we can set up the exchange.

Hope to hear from you soon!