If your wooden bowls or utensils are feeling a little furry, it's likely because the wood grains are raised from repeated washing and drying. A little finish sanding is all they need and if you don't have high grit sandpaper around, you can use a brown paper bag.
Picture: Alan Levine
If the wood is chipped or splintered, you'll need to use regular sandpaper, starting with a low (course) grit and working up to a high (finer) grit. But, if all your bowl or utensils need is a quick finishing sand, a brown paper bag will do the job just fine. Fold it up into a square and use it just like you would sandpaper.
Maintaining Your Wood Bowl [New Hampshire Bowl & Board]