Thalis, bells, kalash, diyas, incense and the everyday items a home mandir needs, shipped duty paid.
Available in the United States. No customs at your door.
These are the things that are genuinely hard to replace abroad. Not because substitutes do not exist, but because the substitutes are wrong: an aarti bell that does not ring properly, kumkum in the wrong shade, a thali stamped from metal too thin to sit steady. The items here are the ones meant for daily use rather than display.
Two practical limits. Camphor and lamp oils are classed as flammable and cannot travel by air, so buy those locally and take the rest from here. And small items are cheap to add to a parcel: incense, wicks, kumkum and haldi cost very little extra on an order that already contains something heavier, which makes restocking in one go far more sensible than ordering piecemeal.