All you need to make your own chalkboard paint jars is chalkboard paint, painter's tape, and chalk. Not only will your jars be quickly relabeled, you'll easily be able to distinguish between your coffee beans,marshmallows, dried monkey brains, and whatever else you have stored in your jars. You'll have the cutest jars for your lab this side of the Bride of Frankenstein.
Step 1: Tools + materials
Step 2: Mask area
I made a few different rectangular shapes and one with two writable areas.
Step 3: Apply chalkboard paint
It's easy to apply too much paint when doing this, so start with just a light coat and work your way up. Stand jars upright and leave until dry to the touch, about 30 minutes.
Step 4: Remove mask and clean edge
Using a straight-edged blade, gently scrape away any places where the paint bled under the mask or any other places on your jars. Go slow and work the blade away from yourself when possible.