Wacky Bouncer – Dry Sift Vibrator Bouncing like never before. Our new Wacky Bouncer has 2 agitation bud heads designed to give you double the bouncing power! OK, this is not what you think it is...that would be insane at 3000 RPM!  This is a duel high-powered vibrating tool to bounce your bud.  It is the perfect addition to any Dry Sift Screen system and will sift out that keif fast!  Use them directly on any screen. The vibration shakes and bounces the trim and herb separating the resinous trichome glands from the plant matter. Use on a carding screen to separate plant contamination from the extraction to collect the full melt and optimize your yield.