This hub is cheap and easy to construct out of readily available parts.
You can use it to construct stars, swingers...whatever devious moving targets you can concoct.
Here's what you need:
A: 1 PVC tee, 1 1/2" ID
B: 2x PVC adapters, 1 1/2"OD-1 1/2"ID Sch 40
C: 2x PVC adapters, 1/2"ID-1/2"OD...