Sonic n Amy fusion gem

Ok, I know some of you who wanted see sonic and the others as the gems to turn into fusions

So, I first started to draw with Sonic(Tanzanite) and Amy(Roselite) in some designs I could think of.
Some of my favorite Fusion Gems from the show that I was inspired are Opal, Stevonnie, Garnet, Rainbow Quartz, and Sardonyx. I think I kinda want Sonic and Amy's fusion to look almost like them.
It was a very hard decision to see of what will they look like in their fusion form. And which the name of a gemstone will I give them?

Well, I'll try to figure it out, unless if anyone will help me. And who will I draw next into a fusion?

Sonic characters (c) Sonic Team
Steven Universe (c) Rebecca Sugar
art designs (c) me