They may not be the obvious choice for many crafters, but if you are looking to work with less run of the mill art materials, give a thought to metal and woodwork.
Find a suitable class and you could try something like repoussé, a metalworking technique in which a malleable metal is ornamented or shaped by hammering from the reverse side to create a design in low relief. You also could try moulding or welding to make decorative objects.
And if that all sounds a little hardcore, why not have a go at jewellery making? There are plenty of shops and websites that stock the findings (clasps, brooch backs etc), wire, pliers and millions of different beads and decorations, and it is relatively easy to construct your own creations and hone your skills, without going near costly precious metals!
Then there is woodwork. Woodcarving employs the use of chisels, gouges, and a mallet, and if you want to get really serious, you can work with powered equipment like a lathe, whereas whittling involves only the use of a knife. You’d also use a lathe for woodturning, to create items such as wooden bowls. Have a hunt around on the internet for hobby groups and classes if these types of craft appeal.