The drink coasters are being shipped by the USPS (United States Postal Service) both for domestic and world-wide rewards.
They are being packed in #10 size security-tinted business envelopes.
each envelope can hold up to four (4) coasters.
A pledge for a set of 4 coasters or less would arrive in one envelope.
A pledge for 8 coasters will be packed into two separate envelopes: (four coasters in each of 2 envelopes).
A pledge for 12 coasters will be packed into three separate envelopes: (four coasters in each of 3 envelopes).
The coasters will be fitted securely into a very simple holder I'm making out of paper, and will slide into the envelope, fitting from edge-to-edge. This should keep the coasters from slipping around inside the envelope.
I’ve already done numerous test shipments in business envelopes, both to locations within the US and overseas. No problems with damage to the coasters as of yet!