I have at the moment:
6 oil filters
4 larger fuel filters
3 smaller fuel filters
1 starter ( it came with the boat )
3 raw water impellers
1 large bag of gaskets for the motor ( came with the boat )
100 feet of yellow floating line ( for power boaters )
3 LEDS litebulbs
8 D cell batteries
8 C cell Batteries
20 AA batteries.
12 hose champs ( different sizes )
I am sure I have a lot more, but that is all I could think of, at the moment.