From Longman Dictionary of Contemporary Englishpincushionpin‧cush‧ion /ˈpɪnˌkʊʃən/ noun [countable] 
DHa soft filled bag for sticking pins in until you need to use them
DHa soft filled bag for sticking pins in until you need to use themExamples from the Corpus
pincushion• At once he was feathered with arrows like a pincushion.• She ate so many she looked like a prickly pincushion. 