Where can I buy Fingerprint ink?

Go to a paper store. Buy a pad. For stamps. Buy a bottle of ink. Do not over fill pad. Just a little ink. If in America try wallmart. We do things different here. You would buy the pad here. then the ink, then the stamp you wish. Or have the person setting out front custom make you a stamp. With the finger prints you wish. While you wait.

Like others have said a commercial ink pad used for ink stamps will work just fine. It is not the ink that is the problem when taking patent prints but the technique and roll pressure need to get a proper clear print.using ink and a ten print card.

Want a complete set. Go to "serchie.com" for info or "galls.com" to purcahse.

The ink pads you use with rubber stamps will work just fine and can be purchased at WalMart or an office supply store much cheaper.

Just get an ink pad from an office supply store.

Any ordinary art supply department at Walmart or an actual art store will have "black printer's ink" and a roller, or you can probably get by with an ordinary "ink pad" for a rubber stamp, found in an office-supply department.

Are you in the Us ? If so there is a type that is available at Michael's called Memento. It is colored ink not black. If you aren't in the US try a large hobby and crafts store.

Just use any water soluble ink like in a dry erase marker.