using DEbbie Bliss baby pattern for an adult
If you have a small pattern - such as you describe - I'm thinking it would use fingering or sport weight yarn. If you were going to knit it for an adult, you could use worsted weight and heavier needles. If you work on the gauge, you should be able to figure out how much larger it should be. That's as far as I'm willing to speculate about his project, but I think it should work with a little creative thought and, of course, luck!