Funny collages by Dean Marks. What a fun idea! It should totally become a Tumblr (is it still a thing?) or Instagram account. Bananas in History with all sorts of artworks combined with bananas. I would definitely follow something like this (wink, wink).
On another note, Banana Day was a success at my local post office. The people who work there got very excited to see the things I was sending and receiving. It was really great to realise that mail art is fun not only for me but for the people involved in the process too.