I also found two Spring Blossom Corelle plates, two Fiesta mugs in discontinued P86 Rose & Persimmon. And also somewhat coffee related, two metal heat diffusers. These guys would be used with Pyrex Flameware or other glass cookware, allowing it to sit on the coils of an electric stove.
I can't tell a whits difference between current Lisa Frank stuff and 'vintage', so I really don't know how old this is. And I can't find one like it to compare. But I bought it to use. ( I like to load up a couple of coolers of drinks and snacks to keep me and the hubs powered up through our epic all-day antique shopping trips we take every few months or so. :-)
Lisa Frank inevitably reminds me Trapper Keepers. And have you seen how much 1980's Trapper Keepers are going for these days? Gah! In all my thrifting, I've never come across a single one. I'd collect the crap out of vintage Trapper Keepers if given the opportunity. Haha.
Anyways, that's my second thrift haul of this new year :-)
Hope you're finding great stuff!