Working with clay can be very gratifying.  It is one of the earliest crafts humans learned, and it still holds an almost primal appeal.  Put your hands on some wet clay, work it around a little, and you will see. 

Making jewelry and other items from metal is truly fascinating.  It combines a number of skills, most of which are fairly simple to learn, along with some science and a lot of possibilities for art.  Get out the jewelry pliers, tiny saw blades and the Dremel, put on your magnifying visor,  and suddenly you are in a private world, where you craft a beautiful silver piece or mount a precious stone on a ring of your own design.  

My grandfather would sit for hours and whittle.  Sometimes I would join him on the porch and try my hand.  I made a lot of pointed sticks, while he was crafting intricate parts that became violins.  We both enjoyed the time.

The smell of freshly cut wood is captivating.  Use a tiny cutting blade, a fancy radial saw, or a chain saw, whatever appeals to you.  They are all better than the rock tools our ancestors had to use, and they managed to build some pretty neat wooden stuff. 

If the Neanderthals had invented disco lounges, surely some of the males would have shown up in polyester leisure suits.  But the  leisure suit and polyester had to wait through thousands and thousands of years of  sewing and  weaving by hand, using available plant and animal fibers.  Then ... the BeeGees showed up.

Now, with the advent  of man made fibers and automated machinery, many of the hand fiber skills learned through the years are becoming lost to us.  Yet, they can still be both rewarding and very gratifying.  Explore the various fiber arts.  Sometimes, the natural way is the best way.