Mental Floss:

In Sweden, there will soon be an entire institution devoted to these abandoned, ridiculed ideas. The Museum of Failure, opening in Helsingborg, Sweden on June 7, showcases innovations that fell flat, from Bic for Her to Harley Davidson perfume, asking visitors to consider what we can learn from these failures.

I don’t know that I’d visit this museum and I’ve never heard of “Coke II”.