Evolved's The Flapper will absolutely, shall we say, fill all your anal vibration needs, and it comes complete with a unique inner flapper to boot...and butt.  

Up top, The Flapper features a smooth, tapered tip for comfy penetration, and there's a smooth swell below for some sexy, vibrating stretch. Meanwhile, in the hollow center, a namesake flapping stimulator flickers and flicks against your (or their) inner anal sweet spots.

You can explore ten modes of tip and neck vibration with ten more flapping patterns or play with either solo - separate buttons at the base or on the included long-range remote control each function.