Sure! I can make a cake that looks like that! No problem!
I don't have an egg-shaped baking pan, so I decided to modify my round pans. (I could have just baked the round cakes and then cut them into an egg shape, but I always have serious crumb-in-the-frosting issues when I try that method. Not to mention the cake scraps that get wasted.) So get ready for some serious "make do" action.
I fashioned some aluminum foil into an egg shape and inserted it in the pans.
Then I added more foil to fill up the empty areas.
Finally I covered it with parchment paper so that, when I poured in the batter, it didn't seep under the foil.
It's not pretty, but it worked OK. And out came two (sort of) egg-shaped cakes!
I tinted the buttercream icing orange and frosted the cake with a shell border at the bottom. Then I added some brown food coloring to the orange frosting to make a slightly darker shade for the writing. I drew on the writing with a toothpick and then went over it with the frosting in a bag with a #2 tip.
And here we have a precursor orb birthday cake!
The birthday boy was over-the-moon. Even though he was the only one who knew what the cake was supposed to be.
Happy 12th birthday, Dawson!