I am running a session at the ASTC conference in October about the possibility of developing an exhibit "cheapbook" [a compendium of inexpensive exhibits for interactive museums, ideas not yet so "common" that they show up in practically every science museum] If you have questions, suggestions, or possible submissions please reply via e-mail or talk to me at the ASTC conference. Thanks! Paul Orselli Ann Arbor Hands-On Museum <[log in to unmask]>