Step 1: The material
- key keg
- 10cmX10cm of pine wood
- four screw
- a little tree branch
In order to re use objects that normally are lost I take from junk this "key keg" normally used to spill wine in wine bar (in Italy)
!!!! may use caution !!! to drill a little hole because it is charge with CO2 4Bar
then is possible cut the large opening with dremel .