A small wooden toy top

I found this scrap of very hard wood, which I thought was Eucalyptus, but, I don't know . . .
Anyway, I thought I'd turn a quick top. They make nice gifts. I get to practice my lathe skills. This one's a bit of a fail though. It doesn't spin well. I think there's big difference in wood density within this piece of wood which makes it hopelessly out of balance.