Before you download this: These are customizable here: Customize them Here.
Let's face it, if you're here, we all know what happened. One of your pets decided to bravely defend your household against an intruder that didn't exist. Now you're left with a blind that looks like it lost a round with a ghost.
You can customize this inside of OpenSCAD: Link to Maker World Editor. You'll need a few measurements. First, grab the thickness of your blind (front to back) – most are between 50mm and 65mm. Next, measure the width of the patch. How wide do you want the sleeve to be? I recommend adding about 10mm to the length of the crack for good measure. Lastly, decide how thick you want the walls to be.
The print time, on average, it's about 15 minutes per tab, depending on who big you need these to be.