Start by washing your wand with a good anti-bacterial soap and allow it to dry. Once that process is done, you can decide if any of the below uses peak your interest.
1. Eyebrow Brush
Tame your unruly eyebrows by brushing them with your mascara wand. Blend out that brow pencil and brow powder for a more natural looking brow. If you need a little extra help taming your brows, dip the mascara wand in a little castor oil and brush your brow. Your brows won't move a bit!
2. Separate Eyelashes
Surely, you have figured out this one on your own, but I can't help but put it on my list. Old mascara wands are the best solution to dealing with eyelashes that have been "glued together" due to your generous application of mascara. It also does the trick, if you need to get rig of mascara clumps.
3. Dye Your Roots
Unlike the useless brushes that come in packages with the hair dye, a mascara wand has some natural flexibility, and can help you get more coverage when sorting out your roots. With the wand, you can really get to "the bottom of the story", and get every single root generously covered in dye.
How do you re-use your old mascara wands? Let me know in the comment section below!