We have a "Crest of Love" - a beating heart.
I want a "Crest of Life" - a beating "spark of life" armor front accessory. (I like blue).
This could be earned by collecting a certain number of SoLs (like just rewarded when you have X-# of SoLs in your inventory - which means it could be "bought" via bulk SoL purchases or gradually earned via luck with playing and popping boxes), or exchanged for a number of SoLs, or simply released during some relevant promotion.
That is all.