Blood flow/stimulation/sensitivity aids?

I have the AMS700LGX implant put in a bit over 3 months ago. I am hoping that blood flow/circulation will improve a lot with time. Have any of you tried using a vibrator/massager on the penis shaft and glans to try to stimulate better feeling and blood flow?

If you have, has it worked well? What kind of vibrator or massager worked for you? Any special technique used for best results?