Does anyone have a recommendation on what nipple rings to use while your baby is still breast…

Does anyone have a recommendation on what nipple rings to use while your baby is still breast feeding? I bought a staple set but I'm worried the bar is so much smaller than the normal bars, that it'll close. It's the most convenient solution I've tried so far, but I really don't want to go back and repierce my nipples once I'm done breast feeding.. I also bought septum horse shoe rings but they're too small for my nipples.. Do they make different size staples? (Like septum retainer staple, not the office supply)