[Wannabe]

I use silicone bands to maintain / train. I'll often place silicone bands (one or more) after a SuppleNips session.
Clear Silicone O-Rings (pack of 10) 10mm works for me, some may prefer 8 mm. At $5.95 for 10 these are cheaper and work better than a more expensive brand ($16.99) I tried called nipplebands

Thanks for the links, PW. I've been using size 1 SuppleNips inconsistently for a year and a half or so. I seem to have gained a nice degree of permanent perkiness and they form very prominent cones when erectile. They haven't really taken the classic cylindrical eraser shape, though. I'm wondering if using the ring gadgets might help with that. I may pick some of those up and give them a try.