Create your own!
"Sorry, just a second, Skipper, I just noticed that the data I'm dealing with is always monotonically increasing, so I can reduce the space complexity of my data structure by at least a factor of n," Barbie says. "Gosh Barbie, none of that space or time complexity stuff really matters in practice, you know!" Skipper jeers. "Skipper, that is the worst thing I have ever heard anyone say." Barbie is very upset because Skipper is very wrong.