FWIW, a few "Stones" that I use. They were created by Alisa on ELR and adapted to my flavor stash. I usually age about a month & use between 2 & 10%. You can find the "originals" by searching the recipe side on ELR.
Cakestone
Vanilla Cupcake (CAP) 35%
Cake Batter (CAP) 25%
Bavarian Cream (CAP) 20%
Marshmallow (FA) 20%
Custardstone
Vanilla Custard V1 (CAP) 60%
NY Cheesecake (Purilum) 25%
French Vanilla V1 (CAP) 10%
Italian Cream (Hangsen) 5%
Creamstone
Bavarian Cream (CAP) 30%
Tahitian Vanilla Cream (WF) 20%
Cream Fresh (FA) 20%
Dairy Milk (TPA) 20%
Italian Cream (Hangsen) 10%