A way of encouraging players to pick up more miniatures was the mail order scenario deal. The scenarios were published either in the Citadel magazines or as boxed adventures.
These sets are mostly great sculpts, but trying to get all the pieces for a set may take several years, or you may strike it lucky at a single bring and buy.
My in progress collection is to be found on The Stuff of Demons.
The Legend of Kremlo the Slann was published in Compendium 1. The miniatures pictured below were a mixture of special and standard pieces.
Featured in the Shrine of Rigg Scenario in Compendium 2.
Included in the Warhammer Fantasy Battle 2nd Edition Box
The first of the Village Packs featuring Citadel's (in)famous cardboard buildings that have graced many a gaming table ever since.
The second Village pack
The Sequel to the Terror of the Lichemaster
Shadows over Bogenhafen