My friend really love his combiners. But one thing he hates are random parts that have nowhere to go outside the combined mode. So what do with those parts? Store them on a trailer of course!
I used a cheap-ass dollar store thing. It's soft like a margarine container, but it was easy to mod, almost of the perfect size from the start, AND the right color. All parts fits in superbly. The trailer even hitch on Onslaught! (Yes, ONSLAUGHT. Not "Mega Octane." Shut up.
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That custom cannon on top give the combiner a bad-ass weapon and help him to balance upright.
Include a G1 Devastator gun that some baby took pleasure in chewing it like bubble gum.
The "Onslaught" was missing both of his chest-plates. So here's the one for the regular bot.
The big thing hanging from the bottom and wraping the sides of the trailer is the chest-plate of the combiner.
Individually, the team make sense by having two copters and two tanks. Nothing grossly out of scale. Also, custom chest on Onslaught.
G2 Brawl can hold the Devastator gun. I also grinded it so that Onslaught can also hold it.
Those G1 feet could use a heel. Regardless, the big heavy gun help balance him. That custom chest-plate used a part from a "dead" Universe Astrotrain.
Overall, it was a pretty simple job, but a fun one to do. My friend love it!