OK, I did find that cool Limar yellow helmet in medium here for $79, so I got one:
https://www.bicyclebuys.com/Items01....SKU=LI9076PART
Hope they actually have it as listed. And special thanks to PLL (pat) for pointing out the groovy Limar to me! It's exactly what I had envisions- just plain super bright yellow all over.
I hope it works out! Will post when I get it. Here's a yellow smiley in the meantime: