Pulse Toy Pump question What are vibration toy pumps, and how do they work?

[ShahH]

I've heard about vibration toy pumps, but I'm not sure how they function. Can anyone make clear their purpose and mechanics?

[Yousef]

Are vibration toy pumps primarily used for delight or are there other practical applications?

[LaughingLark]

Where can one find pulse toy pumps, and what ought to one take into account before purchasing one?

[HumorHawk]

How do pulse toy pumps examine to other kinds of grownup toys in terms of effectiveness and enjoyment?