Launch & Catch if you Can!

A novelty little Flying Toy/Game if you will, I wanted to design and print something which could be played with and this is what I've come up with, I'm calling it a Launch & Catch if you can Ball Launcher & Catcher, could be played with solo or print as many as you want for multi players, the idea is that you launch the ball and then the recipient/s tries to catch it in the cup or you catch it yourself(Good Exercise), played indoors with a ping pong ball ( Which I didn't have unfortunately so I couldn't try it)4 x Components to print and a suitable spring, the stronger the spring the further it goes I guess. the spring I'm using is one out of a toilet roll holder ( I bought 3 holders on Amazon UK) and it's perfect for this application.The guide is glued centrally to the bottom of the cup, then the plunger is inserted, the ball saddle has glue applied to it before adding the spring and then pushing the ball saddle onto the plunger within the cup, its a snug fit, trial fit it before asse