This is the level of DIY I yearn for. I don't need to know how to make a dollar store desk organizer into a SLIGHTLY DIFFERENT ORGANIZER, need to know how to render base reagents from my kitchen into a useable shampoo, or how to muster the secrets of chemistry and physics to render a potato edible without cooking. Give me how-to's that help me unlock $500 of bonus features on my car / TV / router with just $0.30 in parts. That's the stuff that I look for. ...I keep saying I'm going to start refining my own clay and start building some epic decor or planters, just gotta get around to it.
Anyway, here's this. On a side note, if you don't have wood filler, but you do have wood glue, toilet paper is a handy source or cellulose similar to the cellulose mixed into wood filler.