Doob Tube Cap Replacement

I lost the cap for my Doob Tube so I decided to do a quick model using another lid. The "OEM" lid is the darker one on the left. The infill was only 10% but it is solid as I have 8 lines of wall.

It fits well and I dont find it smells any more than the real cap does. The cap doesn't fall off when shaking it so it is snug in place.

Making it out of TPU would be interesting as it could create a more air tight seal, but I dont have any on hand.

Let me know if you have any questions!