Like adding Stairs to the side of them or wall pieces .. not the giant stuff .. big isn't always good and maybe some fences.
I tried a bunch of Vanilla style items and was not able to get them to snap or even sit on the big blocks ( I like the big blocks for harbor building _ just to big for anything else. )
Also it would be nice if there was someway to adjust the height of the starter block, I know game is EA and maybe that is why it's not in game yet .. Just a couple of thoughts