Helicopters Abound

I got a new helicopter the other day, and now I have some questions:

• Can it carry a business card "sign"?
• Yes- I started with a paperclip hook and a luggage tag and it flew ok.  It also flew ok with a business card wedged between the skids in both horizontal and vertical positions.
• What happens if I attach it to a balloon? (taped to skids seems easiest.)
• Helium filled?
• If there is enough lift from balloon, can I fly inverted?
• Air filled?
• How does it fly in a mini-van?
• Stationary or Constant speed
• Accelerating or Decelerating
• With helium balloon?

Answers to follow, stay tuned.