You can also add some solder to the edge of the PCB where the copper tape sticks to the pencil
to reinforce the copper tape.
Note: If this turns out to be too difficult, use the included piece of purple wire instead.
Strip both ends and solder one end the the pcb.
The other (longer) end should be wrapped around the thumb-tac.
Next, get the other piece of copper tape. Stick the tape to the other end of the PCB and wrap it
towards the point of the pencil.
Also use some solder to fortify the connection to the PCB and the edges of the tape.