User blog comment:Mckrongs/More Sandbox stuff/@comment-765166-20111120024453/@comment-765166-20111120024734

The Polytan and JUMP Bombs are actually official to the Japanese game "Monster Hunter Portable 3rd. Trading corresponding event tickets to a Veggie Elder will let him give you the Bombs, Credits to CHUMP at Capcom-Unity.

Objectives:
 * To check if this is also possible at Monster Hunter Portable 2nd G, and Japanese MH Tri.
 * To check if this is also possible at Freedom Unite (which is highly improbable).