Gboard users are in luck: just Google updated Emoji Kitchen to include over 1
Emoji Kitchen was first introduced earlier this year, but only offered a few hundred emoji combinations at the time. You could tap on an emoji and check out a few curated designs that were available to you. Now you have more control, because Emoji Kitchen lets you choose two smileys (with a few non-smiley options too) and mix them together.
If you want to join in the fun, you can become a tester for Gboard beta today. Otherwise, you can smartphone keyboard app for your iOS or Android device and wait for the update to roll out in the next week or so.