I totally thought everybody had let those fade into obscurity XD
Unfortunately, most of the in-game items are glitching, and half of them are items needed to create Nautilus' and Roguecog's outfits.
I don't have any reference pictures at hand, but you might be able to find some old screenshots of Nautilus/Roguecog somewhere around the forums?
Here's an off-hand description:
Nautilus has the frozen top hat with a black outside and red inside (forgot the name of the hat, but please don't add the ice in your drawing XD), a silver Welder's Mask with red visor (gray and red dye), and the stealth suit in black and red dye.)
Roguecog has the cuckoo-clock hat (forgot the name) in its natural colors (as far as I can remember, mostly bronze metal with orange-brown-ish-red fabric for the rest), the Locomotion suit in its natural colors (mostly bronze chest plate, tan sleeves, gray gloves with red pants that have a gold train track decoration), and the same Welder's Mask as Nautilus (except Roguecog's isn't the highly polished specimen Nautilus' is lol).
If you can't find screenshots or need more details, let me know.