Don't you just hate these small and sharp coat hooks?
Why did you cut a hole into the magnet? Wouldn't it have been easier to just use longer nails, perhaps deck nails, to mount the speaker in the bottom four holes (mounting holes that are built into the speaker housing)? That way there would still be a lip that would be able to hold the jacket.
The hole was already there...

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More by bertus52x11:Stone Ski Helmet The Selfie Ring a.k.a. the Phone Ring Washing Machine Door Salad Bowl. 
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