a: 15
b:

Dots!, New England Quilt Supply
TT-Dot-C1820-Black
TT-Dot-C1820-Black
TT-Dot-C1820-Lime
TT-Dot-C1820-Lime
TT-Dot-C1820-Red
TT-Dot-C1820-Red
TT-Dot-C8535-Navy
TT-Dot-C8535-Navy
TT-Dot-CD1820-Cherry
TT-Dot-CD1820-Cherry
TT-Dot-CD1960-Confetti
TT-Dot-CD1960-Confetti
TT-Dot-CD1960-Multi
TT-Dot-CD1960-Multi
TT-Dot-CD1995-Black
TT-Dot-CD1995-Black
TT-Dot-CM9528-Black
TT-Dot-CM9528-Black