Answer:
You could say like a homemade sand timer or something like that.
Explanation:
I was tghinking this becasue you have to combine 2 bottles to make the sand flow from one to another. BUT I COULD BE WRONG.
A picture of taping the washer to the bottle, and arrows indicating that the tape shouldn't cover the washer hole.
hope this helps!
ware means
Industrial faculties for manufacturing
Horatio is the correct answer.