Just had a co-worker gift these to me after I noticed them – a joint Gov Kristi Noem/Kid Rock button/bumper sticker set from the Buffalo Chip last year that I did not know existed.
Joint events with musicians and politicians have a bit more cross appeal and value, and this was obviously a low-number run of pins. The most famous example is the McGovern for President Pin with Carole King, James Taylor and Barbara Streisand. Otherwise, I’m not sure there is another South Dakota based example to cite!
Very glad to add it to my South Dakota collection.