I decided it was time to change the oil on the boat after putting close to 100 hours on it so far this season. I don't have a fake-a-lake, and It was too late to go to the boat store, so I figured it would be pretty easy to rig one up. I was already at Walmart, so I grabbed a few things that I needed there.
I got the cheapest toilet plunger, a metal quick connect, and a hose end cap. Total bill was about $10. The build is pretty fast, first drill out the hose end cap. Then cut away the inside layer of the plunger if the one you got has one. Next, cut a hole in the side of the plunger to fit the male end of the hose quick connect. Leave it a bit tight. Screw the hose cap on the other side.
Thats it. Works like a champ.