Step 1: Get Your Materials.
1. dried out marker
2. wooden stick (optional)
3. mini baster thing... (optional)
4. white vinegar
the stick or the baster are to get a specific drop of white vinegar you don't want too much because that could delude the ink...
Step 2: Put Some Vinagar in the Cap.
Step 3: Get a Drop
Step 4: Rejoice!!!!!
if you need help or tips.. or something wasn't clear just tell me.. glad to help!!