Library secretary Mel Linwood was delighted with the help provided by Kerry Lockhart, Jackie Hawkes and Kim Ingram, who spent about six hours at the library.
''They were great,'' Mrs Linwood said.
The help from BNZ volunteers was part of an annual ''Closed for Good'' initiative in which all BNZ branches throughout the country were closed yesterday and more than 3000 staff volunteered to work on more than 550 community projects.
Among them were 24 projects in Otago, including 11 in Dunedin.
The toy library, which is celebrating its 30th anniversary later this year, is home to about 1000 toys, including a dragon costume, with an impressive set of wings.
About 800 of the toys are described, and have digital photographs, on the internet, but the others are harder for potential users to access, because of a lack of images.
The volunteers had made a ''huge'' difference by taking all the remaining photographs, including of the dragon costume, in a day, a task that would have taken the library's busy volunteer committee a week or more to complete,
Mrs Linwood said.
Kim Ingram, who co-ordinated the volunteer effort at the toy library, said it was ''great'' to get out of the office and to help in the community in this way.
Other Dunedin projects included helping in possum detection with the Otago Peninsula Biodiversity Group, providing financial literacy sessions at Age Concern Otago, and cleaning at the Dunedin Parents' Centre.
