Once everyone (or most of the table, at least) offers their name, the planchette starts spelling again, moving slowly so they can catch each letter.
M. A. R. Then it hesitates, wobbling back and forth in bigger and bigger arcs as though competing forces are pulling on the planchette. Finally: G. Then it stops dead.
MY NAME IS...
M. A. R. Then it hesitates, wobbling back and forth in bigger and bigger arcs as though competing forces are pulling on the planchette. Finally: G. Then it stops dead.