We all wish so...
But
this was the only reference I found.
Description: Apparently the TBS ishop recently started taking preorders for special guitars based on those of K-ON’s Yui and Mio. The Hirasawa Yui Model Beginner’s Electric Guitar and Akiyama Mio Model Beginner’s Bass sell for 29800 yen each and come with a set of limited edition clear stickers to make the perfect otaku guitar. The guitars are designed for girls and middle/high school students and as such are made of light materials for a lighter than standard weight.