This is a spaceship from my fanfic with Sarifel et al. A lot of things have changed in the different rewrites, but one thing that hasn't is The Kafit, Alloran's new ship that he built after being freed from the Yeerks. While the prominence of the ship has varied from rewrite to rewrite, it does appear in each version so far, and it always looks like this - a silvery, spearhead-shaped vessel with three Shredders and four engines.

Tiny figures of a Human and an Andalite for scale.