And of course we gotta have lights. Dang near all my projects have lights, lots of 'em. That rear bumper, like the one on the Frobe, has translucent filament insets with LED's behind.
In this case there's an Arduino to drive them nestled between the frame rails:
Mudflaps there too. The Arduino gets power and iBus data from the Frobe via a four-pin harness, as used for LED strings (cheap/simple/readily available, I like.)
Inside pair on each side are red brake lights, outside are orange turn/hazards.
I forget if I mentioned on the Frobe thread, but the license plate is also printed on the new Bambu one-head-many-filament printer. The only problem is that to get that level of detail you gotta use the TIIIIIIIIIIINY print head (0.2mm nozzle) and high resolution, so a license plate takes two hours to print :O But it comes out nicely, IMO.
And a brown Maine Coon. That one is Faith, though she's a snooty diva and does occasionally get called "Princess Irulan" under my breath.
Along the sides undef the edge are sideways-facing WS/SK2812 "NeoPixel" units. They come on dim with the headlights as markers, and blink bright with the turns and hazards. Mostly like 1:1 trailers, but also I just like blinkenlights.
Had a bunch of leftover shackle mounts that fit well, so they got screwed on all around the perimeter as attachment points. Found some actual honest-ta-God functioning ratchet straps on AliExpress. The ratchet spring isn't real strong, but the straps hold down 35oz of filament just fine once in place.
Looking at another thread here I see that usually the trailers have that bar going along the length of the side for more strap location options, so I may switch to that. OTOH, I'm also debating putting stake pockets on this, so ..shrug..
So that's how that one sits now. As the weather improves I'll get it out in the driveway for some outside hero shots with the Frobe.
Hopefully more trailers to come.