For christmas 2017 I’ve created an AR giftcard App.
http://www.giftcard.tools

Beta:
https://play.google.com/apps/testing/net.MegAgeM.giftcARd

Copyright / Legal:

I used the following Assets:
Viking Crew Tools – Speech Bubble Manager
OpenCVForUnity

Query-Chan Asset
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http://www.pocket-queries.co.jp
http://www.query-chan.com

Unluck Toon Character Pack: