Things you will need:
1- 90° PVC pipe elbow diameter 110mm (choose one that almost fits the top of your watercooker
1-PVC pipe lengt is your own choice
1- old towel
some wood to support the pipe
if you want to steam bigger things like a board, you can use a styrofoam box where you cut a hole in and jam a piece of PVC tube in.
Tool you need:
a hacksaw (or use a angle grinder or dremel)
a Angle grinder with a cutting blade (optional)
a dremel with a cutting wheel (optional)
tape or glue ( don't use hotmelt because it WILL melt when the steamer is used)
some things i still need to do or work out myself:
the end of the PVC tube keeps deforming from the heat
i need to build a support for the tube
the cuts in the elbow need to be refined a bit and sealed off.
Step 1: The watercooker bit
The problem is, that it is possible the heating element overheats and melts, to prevent this there always needs to be water in the cooker when its turned on.
If you want to sacrifice a working cooker, then you don't need to do this step, but you may want to tape the button in place, if the cooker has an auto off function.