Here is the info from the notice:
From March 10th - 18th we will be running our Irish hunt! There are 8 wonderful Creators Hiding gifts around there store and the sim. But no worry love, all though they will be different sizes, none of them will be smaller then the Vendor Example..
-The gifts are set to 10 Lindens each and the prizes inside are Magical!
Participating People and there Stores :
Gloomi Noir, Nightshade Designs, Muggle Weezles, Kinky Mint, Actuate Eden, DAARK Designs, Bloodmyst and Nibby-Licious Creations!
#1 Dress (10 L$)
#2 Skin (not show)