https://www.coderswhotravel.com/about-us/
The above group coordinates exchange programs to bridge communities by soliciting donations of airmile/hotel reward points. This might be an interesting way to fund parts of an exchange program for sending g0v community members to visit and participate in international communities, in a very cheap bootstrappy way :slightly_smiling_face:
Last summer, I participated in organizing an event where we "billeted" lots of speakers for a week, and helped them stay for free with community members. Perhaps a similar effort could bring exchange program costs down even further