…i am so awful at hand-drawing, it hurts 
So, the concept is:
- Lamp jumps up the stairs
- when it reaches the top, it stumbles (if i can achieve that) or “kicks” the bowling ball down the ramp
- physics start here, the ball rolls…
- …and hits the pin.
At least, that’s the plan 
Scene-Setup is done, physics work. Now i design the lamp.
… and… knowing me … i know this will lead to 20-30 seconds movie with cam flight… i know that… 