If you have or have ever thought of having a manipulation act, and decide the best way to end your act is to produce a GIANT version of something that makes NO sense... don't.
If it is a prop that doesn't exist in real life, it might be hard for the audience to come along with you in the believability department. Sure I used to produce giant eyeballs in an act at one time. I realize the irony of this post. However, something that abstract can work. Giant pipes or cell phones... not so much. Doing a CD act and then giant CD's is about where the line ends. After that it gets silly.
There are better ways to end any manip act. Sometimes with an emotional hook or maybe bring an everything back around full circle. However, as magicians we do tend to fall back on what we see. We only know what we see. We only know what we read. We really need to know more.
So in conclusion, I would just like to say: If you think ending your magic routine producing giant cock rings is a good idea...