Masturbation w/o Vibrator

Okay, so, I’m aware the most effective way to masturbate is by using a vibrator. However, I, for some rather obvious reasons, can’t exactly get one, so consider it out of the question completely, if you will.

Anyhow, what’s the most effective way to masturbate (and actually come) without using a vibrator? Any sort of techniques or certain things y’all use/do that help?

Drop em below, please!