Wrap a strand each of A, B and C around cardboard 7 times. Cut a length of A, and thread doubled into large-eyed blunt needle. Insert needle under all strands at upper edge of cardboard. Pull tightly and knot securely near strands. Cut yarn loops at lower edge of cardboard.
Cut a 36 in. (91.5 cm) length of A and wrap tightly around loops 1 1/2 in. (3.5 cm) below top knot for Tassel neck. Knot securely; thread ends onto needle and pull through to top of Tassel. Braid ends together for about 4 1/2 in. (11.5 cm). Thread end of braided strands into blunt needle, and pull to inside of Tassel.
Trim Tassel ends evenly.