Here is how I did it.
1. Glue gunned mini rotating motor to inside of bottle cap.
2. Attached pos and neg wires to AAA battery.
3. Glued battery to top of cap.
4. Attached 2 resistors I used as legs to bottom sides of cap.
5. Attached two inch piece of solder to top of battery as bug like antennas.
There is no on and off switch so I just untape the neg wire when I want to turn off jitters.