Hatty the Hoover Miniature Dolls House Collectable This brilliant little vacuum cleaner will bring a smile to the face of everyone who notices it in your dolls house. Everyone loves Hatty the hoover ! From Streets Ahead. 1:12th Scale. Collectors' Item. Part of the Hobbies Dolls House and Miniatures Boutique. Detailed scale model for adult collectors, not suitable for children under 14 years. Images are for illustrative purposes. Characters and accessories pictured may not be included.