Window Blinds Bottom Rail End Cap

I want to add hold-down brackets to the blinds on my door, so they don't swing every time I open it. My blinds were missing an end cap on one side though, so I tried my best to replicate the existing one. It is a bit more snug than the original, but it includes the hole for hold downs and is more fleshed out then similar things I have seen here.

I am fairly new two CAD/3D software, but this thing turned out pretty good!

If I saved you a trip to home depot, consider shooting me a tip on cashapp: @crayphor