The scout ship bugged me... I have to crowbar it into the realm of "reality" and it's just so small I found it goofy. Like what's teh point ya know?
The Republic Scout Speeder they put out looked like a plausible tiny mobile thing that enhanced a group's sensors/ability to scan what's around them. Like basically a tiny speederbike that's sole purpose was basically acting as a beefed up version of Han's hand-held sensor thing from Hoth ya know?
The Scuba thing, well it was in the toon so I sorta wanted it, plus I wanted to cobble together a realistic "late war" Scuba Trooper too, out of the Clone's head and maybe a 2D cartoon Scuba Clone. I figured them to be sort of an evolution of each other or something.
The Drop Ship is the one I'm kinda into... Like it's a sort of mini speeder/speederbike/freeco type vehicle designed to deploy a 2-man team, like a sniper team or something, and that's all. Or even have a hitch for a medical capsule type deal like Palps picked up Luke in. A quick way to get a wounded dude off a battlefield.
The Y-Wing and whatever Ani's little blue thing are, they're neat, but kind of harder to crowbar into the realm of reality. how many "scout speeders" can you use really, ya know?

Plus the weaponry popping off is great because, well, nothing that small is packing that much firepower, haha. The little tiny guns on the Republic Scout Speeder are about as much as I can buy into on something that small. Thank goodness it had those little antenna doo dads and the guns came off to basically make it look 100% passive/unarmed.