What to plug 3pdt hole with? Im adding second footswitch to a pedal

I’ve used the amp jewel. I had accidentally over drilled the hole, and it was a perfect fit.
It was a Propolis, and looked great with just the jewel and the footswitch. If I remember correctly I used a blue jewel and a red led, so it glowed purple. I gave it to a buddy.
I’ll look for photos…
The marble looks cool too. Haven’t tried it yet.
And thumbs up to JB weld
 
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