3D Printing Pen, Glue Gun, whatever... my question is, what is it useful for? Although I'm not sure its worth dismissing the product if the answer is for art s

3D Printing Pen, Glue Gun, whatever... my question is, what is it useful for? Although I'm not sure its worth dismissing the product if the answer is for art students, this in itself would be an interesting market for a hardware product.