They sound usable enough. If you’re interested in it, have you considered running a LLM or similar? I think they cluster. If they’ve got GPUs you could try Stablediffusion too.
Mind you, at that price point I think we’re past the point of just thinking of them as compute resources. Use them as blocks, build a fort and refuse to come out unless someone comes up with a better idea.
Depending on what sort of shirt it is, could you considered sewing an interesting patch over the area? Take a sort of ‘visible mending’ approach? That way it just becomes one more memory associated with the shirt.