I did a nostril piercing today with a quartz glass retainer. This type of jewelry has the misconception of being able to shatter, but it's actually quite durable and a lot more invisible than an acrylic retainer. Glass is a non-porous material and it's impossible to have an allergic reaction to it, so it's great for initial piercing. Very discreet, and a super alternative for those who can't have facial piercings at work, but want a piercing. Here's the glass nostril retainer.
And here it is installed.
After 24-72 hours (when the blood clears out and redness dissipates), this will be virtually invisible in the nose.