In this video tutorial Slipperypiggy5 shows an easy way to make a hot air balloon with a rubber band. Take a rubber band put one end on the thumb and the other on the little finger of left hand. With the right hand's finger (index finger) make a twist in the middle and put it on the middle finger of left. Take one part of the loop from the little finger and put it on the thumb and do vice versa. Hold the middle part with right hands index finger and release all loops of thumb and little finger. Insert all fingers on the loop of middle finger, stretch it, and you are done.