These are the mini magnet pin holders that we use in class. They are my favorite!
They normally come in a set of three on Amazon for $15, but it doesn't make sense to buy the entire package if you only need one. By purchasing just one through me, I hope to make this a good way for you to save on the individual holder without having to purchase the set.
Let me know you want one next time you come to class, pay in person, and choose from the colors still available.