Overflow bottle

I'll respond to "they look kinda pathetic" ...
I've got a universal bottle from Advance auto parts in my 67. It's sort of a hexagon shaped. The bottom of it isn't as low as the battery tray. At a glance I can see coolant level, color, etc.. Much like the coolant bottles found in newer vehicles.
OEM bottles for a-bodies are nearly as long as the radiator. Anything you would want to see is obscured.
So beauty is in the eye of the beholder.