A few of my favorite customers live in India, so I've shipped there quite a bit. (In fact, I'll be sending another package to India tomorrow.)

The most important lesson I've learned is to provide extra, EXTRA bubblewrap. For some reason, it seems the India post can be quite damaging to some of its packages. (I've had more than one Bitcoin Penny™ package arrive damaged to India, but to nowhere else in the world. One of my customers suspects the India postal system's rough handling, and he should know best since he lives there; Personally, I suspect the India customs department for opening the package and inspecting the goods before sending the package to the postal department. Either way, shipping to India can be tricky.)

With your product being small, thin, and lightweight, you can easily ship several together in a small 4x7" padded envelope. It'll likely ship via USPS as a "large envelope," and it shouldn't cost more than $3-5 without tracking, at that low weight.

As for international speed, almost all of my smaller padded envelopes have been arriving within 5-7 days to almost anywhere in the world.

Good luck!

Regards,
Me