If I can’t think of a good name within a few minutes, I just name it like I’d name a child.

“Yes this is my current personal project: Jerry. I also have Samantha, Richard, and Jacob. I haven’t touched Richard in a while but have been wanting to go back to him for a while”

Now, picking good names is an entirely different subject. I rarely get a project to the point of releasing it, so can’t help you there