Glue Syringe Protector

I wanted to apply some PVA glue carefully and too much was coming out of the bottle.
I obtained a syringe from my local chemist and that worked but I needed a cap to stop it going yeuky.
I created a cap with Freecad and printed it and that worked.
What if I want to keep it until next week? What if I bump the plunger by mistake?
I created a plunger protector in Freecad and that worked.
What if someone else wants one? Thingiverse!!!