User blog comment:PitchBlack696/Monster Hunter Portable 3rd/@comment-71.214.43.169-20110429011622/@comment-3062343-20110429085723

Pawprint Stamps (肉球のスタンプ). They're dropped by Melynx, if you were wondering. Other than that, they just need Parashrooms, Paralysis Sacs, and some other general, easy-to-get materials. The cat Switch Axe is only really good for multiplayer though, in single player the Rangurotora SA is probably better, or one with a Paralysis phial (e.g. Barroth, Bari Sub or Black Diablos).