Very stupid question about button holder

[RustyRelics]

Alright, I feel like an idiot, like this is reserved for millennials or something, but I'm having trouble with some button holders I bought, like the ones pictured below.



For flat buttons with no shanks, I have no problem. But anything with a shank, or two piece buttons, I feel as if I am smashing the button. I don't want to damage anything, so I guess I have to carve out a spot for the button to sit in, but how/what do I do it with?

 

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[63cagedfalcon]

Small slit in center will help. Not going to smash it.

 

[A2coins]

Those look perfect I'm not sure if they need air though

 

[Trezurehunter]

Use an exacto knife, or single edge razor blade, and you don't have to go to deep with the cut. I have had to do the same thing with some bigger buttons.

 

[fyrffytr1]

I have cut the foam down in thickness to fit some buttons and have even omitted the foam in some instances.