I will leave you with a mustache and I am good for your bones. Some of you find me dangerous, and some need me flavored for good.

I come from many places. Sent by friends you hold dear. They pick from my many faces. To say 'wish you were here.'

A round temptation, red or green, keeps the doctor away, a teacher's reward, gravity's muse, and a tech titan's logo.

When the wheel was invented, it caused a...

I come in pairs but I’m not shoes, I sparkle and add color to you. I near your head, but you'll never hear a word said. What am I?