Customizable Glue Gun Injection Mold for Bouncy Balls

Inspired by LoboCNC's awesome design (see "remix from"), I decided to make a customizable version that molds a ball. Since the ball is going to be made out of glue, I suppose it's going to be sort of bouncy (and that's the point).

There are two outlet and one inlet with a sacrificial input duct to prevent the entire mold from melting (LoboCNC's idea.)