One of the cultists removes Amy's handcuffs. In the next shot, Amy's handcuffs are back on. Later, as the team is being led to their prison, Amy's hands are once again cuff-free.
After the A-Team has been captured and get out of the van, Hannibal's handcuffs are open, he has to close them himself.
The baseball bat Amy brings for Hannibal and Face to use in the fight at the store in the beginning is obviously foam.