The shell itself varies in thickness. The stem and blossom ends are likely to be thicker, and harder to cut. Some areas may be thinner, and easier to break. Your first bowl A bowl is a simple project. Most gourds can be made into bowls.
Some good choices are birdhouse, basketball, canteen or bushels.
Ornamentals are too small for a useful bowl and so light, they jump off the table and smash. Remember that your bowl doesn't have to sit on your table the same way it sat in the garden. A place to sit. Start by making a level bottom. The easiest approach is to find a gourd that sits.