Augh. I spent my childhood in the 70s, and I had a rainbow striped terry-cloth spaghetti-strap romper just like the very first one posted. I do not miss this style at all. Rompers, drawstring pants, gauchos & ponchos; even a very few years ago, I could laugh about these things, thinking "only in the 70s, thank God."
Sadly, no -- now they are all in style again.