I simply wanted a set of all 18 infill patterns currently available in PrusaSlicer.  After searching, I couldn't find any models, so I made my own.  I thought they turned out okay, so I decided to share them with you all.  I'm including G-CODE, 3MF, and STL files so you can do with them whatever you want.

I made the top layer a different color to make the pattern easier to identify at a glance.  My wife suggested that I also make a holder for them, but I haven't gotten to it, and I'm not sure if I will.  

Update: I decided to make the shelf.  You can find it here (Infill Samples Shelf).

I hope these are useful.  If you don't want to waste filament, you can also just save a screenshot of the set.