To work safely, it’s always good to have some kind of push stick to keep your fingers away from the blade of the table saw, the router bits of the router table, and the planer blades. I have some plastic push sticks, but I’m afraid they might break if I use them with the planer, causing pieces to fly off. So, I thought the best idea was to make some wooden ones.
Specifically, to make these push sticks for the table saw, I’m going to use 1cm plywood, pieces of spruce strips, and a 3mm MDF sheet. These aren’t the ones I made, but here you can find a PDF drawing of a wooden push stick for the table saw that you can download, which will surely help you make your own.

As you can see in the video, making a wooden push stick for the table saw is not complicated, and you can make them to your exact specifications. The only advice I can give is for the push stick for the planer: don’t nail or screw the small cross strip underneath, just glue it. It’s possible that at some point, you will plane wood thin enough to touch the blades with it, and if you have nails or screws there, you will nick the blades and will likely have to replace them.