I'm a classic Tom and Jerry fan (Fred Quimby all the way!). Did you know that the cartoon "The Little Orphan" won an Oscar?!
I always seem to end up with orphan blocks at the end of a project. I don't know whether I miscalculate how many blocks I need or always over-estimate but, in most projects, there are a few bits left over. Sometimes I put them into the backing fabric - handy if it's too narrow - but often I'm left with them.
Here's a few from my latest projects.