You can now create fusions of Aether doppels!
See the previous news post regarding creation of Aether doppels.
Silver Fusion Charms are available in the Trinket Shop for 250 trinkets.
You will need a Silver Fusion Charm to create a Fusion of two Aether Doppels. Use more SFCs to increase your chances of twins. Twins allow you to keep one Fusion for your collection and another to continue fusing for the next generation!
Once you have some Doppels and Silver Fusion Charms, visit the Aether Fusion link in the World menu of the main navigation bar to create some Fusions!