Steering wheel/horn center question

I recently went through something like this on my Polara
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The button I was working from has a cast in Chevy logo in it, I used a Dremel to grind out the center. I found the logo on eBay, they only had the Dodge (probably had a run done fore his own project), might be able to contact them about doing the Plymouth one.
Dodge Fratzog Emblem For Grant Steering Wheels Domed Emblem Only 60s Mopar | eBay
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Alan