So why would you ever want to make your own wood putty? There are two reasons: 1.) You're short on wood putty, and the hardware store is closed; or, 2.) You want an exact tint match.
If you have a cabinet or bookcase that needs wood filler, where would you find out the exact color match? From the wood itself. Fine sawdust mixed with a binding agent will give you a quick wood filler that is fairly close in match.
How to Make Wood Putty
You Need:- Very fine sawdust--not wood shavings--from the material you want to patch.
- White or wood glue.
- A disposable surface to mix the putty--a piece of clean wood, cardboard, foil, etc.
Make the Wood Filler
- Gather the sawdust. You only need a palm-sized portion. Remove large shavings or foreign materials.
- Add glue to the sawdust slowly while mixing.
- Form the mixture into a workable putty-like material that you can roll between your fingers.
- Push the putty into the gouge, scratch, or hole, removing as much excess material as possible.
- After putty has dried, sand very light with fine grit sandpaper. It won't take much effort to sand this putty.
But it is a perfectly acceptable way of making wood putty (it's often called "cabinet maker's putty"), and will help you out in a pinch.

