1980s plastic jewellery?

I'm not sure what to make of the (what I'm guessing is)1980s plastic jewellery I sometimes dig up in thrift shops. A piece such as this has this almost Art Deco high style look to it, yet - much like the mood of the1980s - it's plastic. Quite the paradox as far as I'm concerned. And this necklace, which I ended up giving to a pal, even has sterling in it.

Again, I felt torn when I found this pink (pink?) plastic (pink plastic?) necklace for, like, 50 cents. I mean, if it were, say 10 bucks, I wouldn't have bothered. But for 50 cents, sure, I'll try it on for style (with my old hairdo). And in my wee thrifting hear of hearts, I'm oddly torn to this style.

What do you think? Fugly or funky??