[Gracie laughed, doing her best to stay very still, and she smiled at Doll, her happiness clear.]

Um, I might have a snap thingie...hold on!

[Asriel starts to search through his kit, and sure enough, he pulls out a tiny plastic bag of sewable press-studs. He holds them out to Walter.]

These're smaller than buttons - they'll work better for her, 'cause she's so little.