You choose the cellophane bag which can be tied with curling ribbon and optional sweets. We'll fill it with two flying saucers with a launcher to fly them from (different from the picture, they may be seen below); a bright green foam rocket and a black pop gun (push in the cap - which is securely attached to the end of the gun so it will never fly off - pull out the plunger and pull the trigger to create a very satisfying 'pop' as the cap pops out!)