This Texas flag end grain cutting board has been the bane of my existence as I keep making one mistake after another on it…
As you can see, there is now an exposed domino due to being too aggressive on surfacing it.
How would you fix it?
An inlay (would have to be end-grain to keep with theme)? A dark epoxy fill (I tried an earlier fill with silver epoxy and it did not obscure it enough)? Any other thoughts? Everything is on the table at this point…
Inlay some dominoes to match on the other section borders and call it intentional
It won’t look much like a Texas flag then…
Use the underside, and claim that it is just blowing in the wind, and so it’s running backwards on purpose 
for an inlay - some ideas were either a texas shape or the seal of tx.
Another possibility is just cutting it up into smaller usable pieces…
Six dominoes over Texas??
Start a petition for a new State flag.
I hereby certify this flag as the official flag of Jexas.
Oof. Given how prominent it is, I don’t know if there’s much to do but lean into it. Maybe expand it into a bowtie-style repair, or inlay a piece which would contain your maker’s mark / signature.
Admittedly, differing grain directions would make either one tricky.
As a side note, you did a really beautiful job with the end grain patterns on this! I’m loving the fun suggestions on here 
Not much to suggest as far as keeping with the aesthetic unfortunately but will just suggest that dominoes on a cutting board is overkill. Dominoes are primarily for aligning and fitting pieces. Little is gained from a structural point. Glued joint will be plenty strong. Maybe you could trybsome chemical wood burning. Sort if give it a rustic, weathered appearance. Having said all that cutting boards will get beat to hell anyways . Wouldn’t sweat it. Every mistake is a learning opportunity
Come up with a scorched pattern that overlaps the Dominos, the CNC and fill with opaque black or brown epoxy. Or some other pattern, but you’ll definitely be reaching for a different aesthetic.
Try cutting/or knocking the domino with a chisel. Then fill half with purpleheart, half with padauk or whatever the orange/brown board is. More of a challenge: try matching the grain. Then take it to Tarking and make it a puzzle. Maybe laser a barbed wire design along the lines to try to hide it.
You could laser a decorative border around the domino and burn in some sort of message like “Est. March 2, 1836” or “You Can All Go To Hell, And I Will Go To Texas”
