Radioactive! perfect! Your time machine now has a power source and a picture of ET on the box. ET probably had temporal phone else his spaceship would have taken years to get the message. ET was a documentary so it appears you'll also need M&Ms. **broken link removed**
Bill; love the pic.
You can find M&Ms here and thare. May I recommend the ones with the pretzels inside? or would the minis be better as you can pack them more densely?