Puchi is also selling tote bags with this version of Frey and Lest printed on it on her BOOTH shop:
There’s a large version that is about 18x15 inches and a smaller version 14x14.5.
To buy physical things from BOOTH you’ll need a Japanese proxy service. I use tenso, I’ve heard other people successfully use Proxykon to buy from BOOTH too. Here’s a I guide I wrote about buying doujinshi, it has some info about how to use proxies. Feel free to ask me questions about the buying process.