Gather your supplies, and if you're going to decorate your board with duct tape, do it now. Instead of a magnetic memo board, you could use a photo frame or really thick cardboard and just paint it with magnetic paint. I had all of these supplies on hand, so that's why I used them.
Apply the sticky stuff or hooks to the magnetic board before you start adding your makeup. (This was a lesson learned, because applying it afterwards was hard. I kept dropping the makeup everywhere.)
Attach magnets to each piece of makeup. I turned some of the makeup around so I could see the color rather than the label. If you're super creative, you can even make little tags or write in the sections like “eyes”, “lips”, etc.
Decorate your small box or container, and attach it with a few magnets – enough magnets to hold your brushes up. You can add brushes, eyelash curlers, mascara, and whatever else you'd like.
You can organize them however you'd like – switch them out as your mood changes – and easily hang it in your closet or on the bathroom wall depending on the space you have. You could even use a mini board and hang it on the inside of the cabinet door under your bathroom sink!