We all have multi-color push pins somewhere in the house, usually way deep in our drawers. I hardly use them because they are not the cutest, but with some imagination we can turn those around. You can use any push pin/tack, in my tutorial I used gold tacks, but longer the pin the better.
Concrete is making a big statement and it’s really easy to work with. Concrete isn’t that expensive, the bag itself costs about $4-5 at homedepot. My dad works with concrete all the time and not once did I ever think that concrete could be so classy and modern. It’s a sturdy material and easy to mold.
Learn to make here.