[Kuzzy]

I just use various vacuum devices and clamps. I bought a noogleberry nipple enlargement pump and cups, plus I got a few other different types that I bought at adult stores, but the pumps on those are weak so I did away with their pumps and attach the noogleberry pump to it. I alternate which one I use as they all give slightly different results.
So far they would be getting close to double their size they used to be - unpumped.

A word of advice.... Get used to the pressure gradually because if you use to much for to long you will get lil water blisters. They don't hurt but they don't look pretty, I pop mine if I get them, and they heal pretty quick