there are several ways: the most obvious way is anal. by sticking the tip of the mic (which is the widest part) it can stimulate the gspot
another way is fellatio...if pretending the mic is a dick, you can suck on it if this turns you on, leaving the hands free to do a little self stimulation as well
then theres the frot position where u can rub your penis against the microphone
and of course you can just take the bateries out and see if your bleep will fit in there (you may need to padden it with some cotton)