So many good advice... enriched uranium, radium, potassium etc.... just way too many choises.
I'm really drawn to polonium....me and my special guitar. I can imagen. Whoever plays on it his finger will be falling off soon after that.
....
But unfortunately it seems I will have to stick to the more traditional ways.
It worth to come in. Thank you guys I had a good day. All answer is really appreciated. If you still have some advice...just carry on.