Basically I made a 300K ohm resistor out of paper and pencil markings. I used an HB pencil, in case it matters, but others should as well. In an other thread I saw someone saying that a 330K ohm resistor works too. So I did a little testing. Anywhere between 300K to 330K seems to work, but even one below 300, 299, does not work.
Basically take a piece of paper, fold it twice length wise. Unfold the last fold and shade it in as heavily as possible with pencil long the edge. Fold it back but don't run your finger where the graphite is or you will just wipe it off.
Now get two paper clips a wire and a plug. I imagine this could work without a plug too as some people have done. I tried but I had a hard time holding it steady enough for the 5 seconds. The rest of the methodology is in the video
Either solder the wires to the paper clip, or wedge them where the paper clip holds the paper. Slide the paper clips apart for more, close for less resistance.
http: // youtu.be / xu3SchQ6zvM