I was expecting the worst, but the tube pulled out of the tip without any ink mess! Play it safe though, pull the ink tube out over a trash bag and have paper towels close by.
Save the ink tube - see the third picture below.
I tried to get rid of the remaining ink in the tip.
After the ink was pretty much gone, I realized I should have kept it as is. At a club launch, I could have filled out my flight card with the rocket!
At the rear of the ink tube, cut off the clear end.
This will end up being the launch lug.