King's Giveaway (2010)
From MHWiki
A King's Giveaway ran from 11 November through 17 November.
The event introduced three new event mice (Treasurer, Snooty and Leprechaun.
It also introduced three new traps via Trap Skins (Fluffy DeathBot, Grungy DeathBot and Ninja Ambush Trap).
Also introduced were Prize Power, Lucky Coins, King's Credits and the King's Cart (then Prize Shoppe). It also introduced the notion of a Wishing Well at friend's profiles in order to earn more prize power.