Ah, coloured vinyl, one of the great cons of the 70s record industry. They'd release a "limited edition" ( limited to about 20,000 copies) in various revolting shades so you'd rush out and buy the single on the day of it's release, thus propelling it up the charts.
Wear a lot of beige man-made fibre clothing, dribble soup down your chin and smell of wee. Oh sorry, just re-read the original post, you don't want to go as someone who is 70, just from the 70's. My bad.