Split people into groups of three.
Two people face each other and interlock hands. Put a blindfold on the 3rd person. They should then stiffen and fall backwards into the arms of the two people. This should be done several times, with the person falling further backwards each time (the players locking their hands should lower them each time). Other players can then try. This can also be played with only one person catching.
Care should be taken that the two players who are acting as "catchers" are strong enough to hold the person who is falling.
This game obviously involves placing your trust in the people catching you, and can lead nicely into a discussion about trust:
Here are some useful bible verses on trust: