The publishers of La Semaine de Suzette were not above a little product placement, so on page 56 of Bécassine chez les Alliés (1917), when our heroine reports seeing a diminuative version of herself in a dream, she says she was about the size of a Bleuette doll. Bleuette was available to subscribers of Semaine de Suzette from 1905 to 1960, along with a closet full of fashions. See. And.
And in a brilliant turnaround, here's Bleuette imagined as an illustrated character -- with her favourite Bécassine doll. Source.