So I strongly disagree with the "do. not. publish." point. Let the kids publish. Let them cringe 10-20 years from now when they see their first projects. We did with ours. My first geocities site had all the "slop" markers (triangle warning gifs, page under construction, etc), but I still laughed when I found some print-screens I had saved from that era, years later.
Writing slop and publishing slop is a rite of passage. When I see it, I don't have to like it, and I can avoid it. But I would never tell anyone "don't publish". Go ahead, there's plenty of bits on them github servers. Go nuts.