A playsilk is a simple, colored silk scarf. Really any silk scarf will do, but children’s playsilks are readily available from Waldorf-type stores if you do not want your scarves messed up.
Things I have seen kids do with playsilks: dress-up, “wrap gifts,” make sister “disappear,” peek-a-boo, tent, stage curtains, doll blanket/carrier…etc., etc. You get the idea!
Please also visit my post on Wooden Playstands for another playsilk idea.