The thing's carried by group on sledges in little pieces (4,3,4)

I believe the answer is:

bits and bobs

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(Other definitions for bits and bobs that I've seen before include "Paraphernalia" , "Assorted small things" , "Miscellaneous items" , "Odds and ends" , "Assortment of small items" .)

I've seen this clue in The Independent.

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