We've created a Blender file with 2 bounces, 50 frames in total.
In it there is a null that is the parent of a bouncing sphere.
Simply drag & drop your object using shift to make it the child of the null.
After that, you'll automatically have a bouncing animation that you can build from.
Please have fun and remember that the first and second bounce can be completely different; use different objects, lighting, colours, or even a different technique like Stop Motion or 2D!
If you choose to make your bounce in 2D, we have 2 Procreate files to act as a reference for the animation if needed.
One of the files is in 1s (every frame is different) and the other is in 2s (every other frame is different). It's up to you which you choose.
For consistency, when you render the video remember to use 25 fps.
Remember that you can do as much variation as you like, but the bounce should have the same timing; after frame 19 the object should still be up in the air!