For a quiz game for an elder population I need a "library" of positive feedback actions. The positive feedback is given for a "quiz" task completed successfully or an answer given correctly. Feedback should be fun, and appropriate for an elder audience -- i.e. not too fast, not too loud, not to small, intuitive, very easy to grasp. For example, a fun firework, shown onscreen with some well done text shown. Can include grandchildren, babies, but probably not animals.
I'd like to have a library of 10 such feedback actions.
Can you offer some suggestions and how much it would cost to do?