Cordium cord shortener
thingiverse
A nice looking cord shortener that your wife may even like Find the CAD schematics at . https://cad.onshape.com/documents/621c2ede3f615f639258f446/w/b47bdb894d564fb54c7e61b8/e/9b548339ba8d6d0df226527e?renderMode=0&uiState=632841fd7f2718442af31212 The design is for a 5mm cord, but you can adjust it in Onshape
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