Chanced upon a few US websites like this one: http://www.butterflyreleases.com/
which sell live butterflies for release at events like wedding ceremonies!
Apparently, according to Indian folklore, "Butterflies represent the transformation that occurs when two people join lives."
Buyers can choose single or mass (like 50 butterflies in a white box!) release!
They ship the boxes a day before the event and at the event time, the butterflies are released!
Gosh! Won't the poor butts be very stressed all cramped within a box for so long? Do nature conservationists actually allow this kind of business?