Synonyms for Throwing Stick (same or very similar meaning)
WordNet sense 1 (a device resembling a sling that is used in various primitive societies to propel a dart or spear):
dart thrower, spear thrower, throwing boardWordNet sense 2 (a curved piece of wood; when properly thrown will return to thrower):
boomerang, throw stickFrom the ODE community, based on WordNetadd/edit