This is after years of having done lots of origami, often at sizes smaller than recommended because I'm limited as to the materials I had available to use. These are done in the thermal paper some receipts are printed on. The traditional boat is to small to finish with even my fingers, so I had to use a toothpick to shape the insides of the ends of it. The rest use fairly simple folds so only takes some attention to detail to get the fold where I want it. Fingernails being a bit long are useful as well.