There is a particular order in which the parts must be made and assembled in order to get good results, and I've yet to prove to myself that I can make one that works.
But then, life at its best is always an experiment.
And we are at our best when we are actively experimenting, and taking material things and matters into our own hands. My readers may find the following useful: 7 Tenets of creative thinking.
Make, fix and create... teach others to do likewise.