Are there any websites where I can download sample RNA .fastq files?

I'm a bioinformatician and one of my colleagues is a biologist soon headed to grad school. I've been teaching him some bioinformatics in a very unstructured way (and probably not doing a very good job) and now he's only got a couple of weeks left. I want to make a "bioinformatics cheat sheet" for him that goes through some standard file types, creates a little index, aligns some reads, does a quick GSEA analysis, and makes a heatmap. I think this could be really useful, and I'd have fun making it, and I of course can't put any of the data that I work with at work on my personal github. Does anyone know of sample teaching material for bioinformatics like this?