The best replacement for fingerprints is dna.

The best alternatives to fingerprints are rated as following:
★★★★★  dna
★  toe prints
★  fingerprints
  dna fingerprints

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Speaking about fingerprints, one probably shouldn't forget about super glue.

Other search terms related to fingerprints and their ratings are:
★★★★★ super glue
stainless steel
You have in mind a companion for fingerprints and it is not yet here? Propose!



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fingerprints
dna
toe prints