My DS is almost 9, DD1 is 6, and DD2 is 2.5. They play with their playsilks All. The. Time. Our silks are 35" square, 20" square, 12" square, and roughly 8" x 48". All get heavy play time. They're used for dress-up, for wrapping "presents", for decorating, for stuffed animal blankets, for dumping on ones head, for everything. If I had to get rid of all toys but for one thing, I'd keep the silks. If I had to choose favorite sizes, I'd go with the 35" squares and the long ribbony silks.