I have a bamboo one and I use it a lot. Not only for getting the fabric under the needle properly, but I also use it to sweep thread out from under the feet when I've just changed a bobbin, and to grab the little loop of top thread my self-threading thingy on my machine makes behind the needle when I thread it. Also to catch the little loop of bottom thread when pulling it up through to the top at the start of FMQing. I used to always use little pointy scissors for these jobs until the time I accidentally bumped the needle down button while my scissors were under the needle and shattered the needle into 3 pieces....one of which would have hit my eye if I didn't wear glasses! Scary! So now I just use wooden things around the needle; it seems a lot safer.
I have a bamboo skewer that is very pointy that is my favorite, but I also have a couple of narrow-ended chopsticks that will do in a pinch. I really hate sewing without my skewer!