|Type||Event → Party|
|How to obtain||Join in construction at a party with a jackhammer.|
This stamp was released on November 16th, 2010, along with the Explorer stamp for the Water Scavenger Hunt. It was re-released exactly a year later, on November 16, 2011 for the construction of the Card-Jitsu Party. It was available again, on January 19, 2012 for the construction of the Underwater Expedition.
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