In the old days, installing a dishwasher was a lot more fun!
Alternatively: "Before she got the implants and the blonde wig, she was still Dolly Parton ... and now you know how she got her first name!"
Image source: the Web somewhere. Looks to me like the sort of thing you'd see in a 60s or 70s porn magazine, something along the lines of Playboy.
(Postscript: finally tracked down the provenance of this one. It's from a photo spread in Issue No. 8 of "Gorgeous Gals" Magazine, from 1968. Here's a link to scans of the entire magazine. Looks like my guess was on target.)