Summary

https://www.youtube.com/watch?v=szlBSN-Ci2M

This makes four custom hearts with text. The text can be one line or two lines. To make two lines of text you separate the upper line and the lower line with a slash "/".

Updated 12 / 1 / 2018 to add an optional necklace hole.

There is a bit of rounding and boolean operations so be patient with the customizer.