Button Toss - Trying to toss buttons into cups or onto cd's
Rip 'Em - Sew some scraps together and race to see who can Frog them the fastest
Bobbing for Bobbins - Put plastic bobbins in a bowl of water and see who can pick all of hers up the fastest using only her mouth
Cutting Blind - Have everyone take a 6 inch square of fabric and follow your directions to cut out a mystery shape. See who gets the closest. (ie. cut up 1/2 inch, make a 90 degree turn and cut 1 inch, etc.)