This is my first model, so I hope it is useful for you. This model fits the Stanley Quencher H2.0 40 oz Tumbler for use with a bike or as a wall mount if you want to.

I printed in PLA, 0.2 Layer Height, 20% Cubic Infill, Tree Supports set at 30 degrees on the Bambu A1 with the Textured PEI Plate

I wanted to bring my Stanley Cup with me on my bike rides but didn't have an easy way to bring it, so I made this holder. The tumbler slides right in and is securely held in place without getting in the way of pedaling. After much printing and many failed attempts, this version held up to the bumpy ride on the road and bike trails that I would expect a bottle holder to go through. This would likely not be a good option for mountain biking and has not been tested on wild dirt trails.

I recommend leaving the straw behind and just closing the lid when you take your Stanley with you in this to avoid dirt, dust, grass, etc. blowing up into the straw and into your drink!

I am uploading the model with the screw holes where I wanted to have my bottle, but will also be uploading a model that allows you to decide where the screw holes are. Where I currently have it disallows the use of the second vertical holder, so I want you to be able to decide if that matters to you. I found that moving the screw holes up two inches didn't impede my ability to put the Stanley into the holder and take it out.

I printed it in PLA and found that it's durable enough for this job. I did try PETG on a previous version that broke and will update this if the PETG works with the reinforced bottom. I do not recommend putting a large hole in the bottom piece near where the base of the tumbler sits as that was the part that consistently broke when it had a hole to save filament.

I am working on one that also fits The Flip Straw 30 oz Tumbler and will upload it in the future.