I mean the “display” factor is ?? lol… looks like 1/2” material atleast. “Not recommended” but im all for pushing the limits at times ??
Yeah I have a hard time "recommending" this sort of thing too, just was meant as a bouncing off point with possibilities. I thought maybe op was going for a certain kind of aesthetic with the cinder block design.
To the op and point, ive seen these sanded "butcher blocks" at hardware stores, nearly 2" thick, that would work great for something like you're suggesting.
I would definitely go with a cinder block design like wednesday13 suggested where the corners are all supported.
But like someone said above by the time you spend all the money on cinder blocks and the butcher block you'll probably have paid for a sturdy 2x4 stand 2-3x over.

