Remove ink stains on paper without ink killer

Recently wanted to sign a birthday card and take my pen - so my font looks very nice - and zack, I have a nice spot of royal blue ink in the middle of the map.

I have ink killer not in the house, but commercial chlorine cleaner. Just gently put on a cotton swab and dab the paper gently with it. The ink disappears immediately and completely without a trace. Dab the paper at the other end of the cotton swab. Finished. But please pay attention: the treated area is no longer to label like a normal ink killer. Alternative: Simply put a paper in the card, so you do not need chemicals when a mishap happens.

Erasing Ink from a Paper for Seconds | September 2020