Those were my high school colours. There is no way I'd see that and not think about what a joy and delight it was to be tortured in high school...
Maybe if it were mostly gold, with a little bit of black?
Nah, I'm getting nauseous thinking of that one too.
An all red (RED) one doesn't actually sound very appealing either, although I do have a few (RED) iPods and a 'Smart Cover'...
But seeing it might be the thing. I remember thinking the 5s in gold would blow, and it actually looks rather good.
But given the dated look of the rounded sides of the mockups, maybe a throw back black and gold scheme would work. Then maybe black and chrome would look good. Or that awful green that was popular in the 70's. Then a toupee looking case. Maybe a tank top, or fuzzy knit legging for it, or something that looks like those furry big foot looking boots? 😀
No I've got it: Make the black look like granite... No wait...
But seriously, it could look good. I saw a blue 5c and liked it...
OHHHH! Make it look like an Android phone. People will wonder what model you have because you are actually using it! 🙄