Tot Tube Playset Connector Replacement

Had a connector for our Tot Tube Playset get stepped on and crushed.  Decided to print a replacement. It took a handful of revisions because designing and printing the stop inside the connector was challenging.  I wanted it to be a solid circle like the original, but I could not get it to print nicely in PETG no matter how I angled the overhang, so I went with small domes at a 45-degree spread and it printed and works perfectly. 

Tot Tube Playset